<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-249X</journal-id>
<journal-title><![CDATA[Journal of the Mexican Chemical Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Mex. Chem. Soc]]></abbrev-journal-title>
<issn>1870-249X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Química de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-249X2005000400008</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Studies on the Selective S-oxidation of Albendazole, Fenbendazole, Triclabendazole, and Other Benzimidazole Sulfides]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soria-Arteche]]></surname>
<given-names><![CDATA[Olivia]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Campos]]></surname>
<given-names><![CDATA[Alicia]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hurtado-de la Peña]]></surname>
<given-names><![CDATA[Marcela]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Navarrete-Vázquez]]></surname>
<given-names><![CDATA[Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina-Franco]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Flores]]></surname>
<given-names><![CDATA[Kathia]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Autónoma Metropolitana División de Ciencias Biológicas y de la Salud Departamento Sistemas Biológicos]]></institution>
<addr-line><![CDATA[Xochimilco Distrito Federal]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Química Departamento de Farmacia]]></institution>
<addr-line><![CDATA[México Distrito Federal]]></addr-line>
<country>México</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad Autónoma del Estado de Morelos Facultad de Farmacia ]]></institution>
<addr-line><![CDATA[Cuernavaca Morelos]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2005</year>
</pub-date>
<volume>49</volume>
<numero>4</numero>
<fpage>353</fpage>
<lpage>358</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2005000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2005000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2005000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The selective S-oxidation of albendazole, fenbendazole, and other benzimidazole sulfides with sodium periodate in acid medium, afforded the corresponding sulfoxides or sulfones. In contrast, triclabendazole and other 2-methylthiobenzimidazole derivatives could not be S-oxidized under the same smooth conditions with this reagent, but with MCPBA, a stronger oxidizing agent.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[La oxidación selectiva de albendazol, fenbendazol, y otros sulfuros bencimidazólicos con peryodato de sodio en medio ácido da los correspondientes sulfóxidos y sulfonas. En contraste, triclabendazol y otros derivados de 2-metiltiobencimidazoles no pueden ser oxidados bajo las mismas condiciones suaves con este reactivo, pero sí con un agente oxidante fuerte como MCPBA.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Albendazole]]></kwd>
<kwd lng="en"><![CDATA[fenbendazole]]></kwd>
<kwd lng="en"><![CDATA[triclabendazole]]></kwd>
<kwd lng="en"><![CDATA[metabolites]]></kwd>
<kwd lng="en"><![CDATA[S-oxidation]]></kwd>
<kwd lng="es"><![CDATA[Albendazol]]></kwd>
<kwd lng="es"><![CDATA[fenbendazol]]></kwd>
<kwd lng="es"><![CDATA[triclabendazol]]></kwd>
<kwd lng="es"><![CDATA[metabolitos]]></kwd>
<kwd lng="es"><![CDATA[S-oxidación]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Article</font></p>  	    <p align="justify">&nbsp;</p>  	    <p align="center"><font face="verdana" size="4"><b>Studies on the Selective S&#45;oxidation of Albendazole, Fenbendazole, Triclabendazole, and Other Benzimidazole Sulfides</b></font></p>     <p align="center">&nbsp;</p>      <p align="center"><font face="verdana" size="2"><b>Olivia Soria&#45;Arteche,<sup>1</sup>* Rafael Castillo,<sup>2</sup> Alicia Hern&aacute;ndez&#45;Campos,<sup>2</sup> Marcela Hurtado&#45;de la Pe&ntilde;a,<sup>1</sup> Gabriel Navarrete&#45;V&aacute;zquez,<sup>2,</sup> <sup>3</sup> Jos&eacute; Luis Medina&#45;Franco,<sup>2</sup> Kathia G&oacute;mez&#45;Flores<sup>1</sup></b></font></p>     <p align="center">&nbsp;</p>      <p align="justify"><font face="verdana" size="2"><sup><i>1</i></sup><i>&nbsp;Departamento Sistemas Biol&oacute;gicos, DCBS. Universidad Aut&oacute;noma Metropolitana&#45;Xochimilco, M&eacute;xico, D.F. 04960, M&eacute;xico. </i>Email: <a href="mailto:soriao@correo.xoc.uam.mx" target="_blank">soriao@correo.xoc.uam.mx</a></font></p>  	    <p align="justify"><font face="verdana" size="2"><sup><i>2</i></sup><i>&nbsp;Departamento de Farmacia, Facultad de Qu&iacute;mica, Universidad Nacional Aut&oacute;noma de M&eacute;xico, M&eacute;xico D.F. 04510, M&eacute;xico</i></font>.</p>  	    <p align="justify"><font face="verdana" size="2"><sup><i>3</i></sup><i>&nbsp;Facultad de Farmacia, Universidad Aut&oacute;noma del Estado de Morelos, Cuernavaca, Morelos 62210, M&eacute;xico</i></font>.</p> 	    ]]></body>
<body><![CDATA[<p align="justify">&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2">Recibido el 16 de agosto de 2005.    <br>     Aceptado el 14 de diciembre de 2005.</font></p>     <p align="justify">&nbsp;</p>      <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2"> The selective S&#45;oxidation of albendazole, fenbendazole, and other benzimidazole sulfides with sodium periodate in acid medium, afforded the corresponding sulfoxides or sulfones. In contrast, triclabendazole and other 2&#45;methylthiobenzimidazole derivatives could not be <i>S</i>&#45;oxidized under the same smooth conditions with this reagent, but with MCPBA, a stronger oxidizing agent. </font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Albendazole, fenbendazole, triclabendazole, metabolites, <i>S</i>&#45;oxidation.</font></p>     <p align="justify">&nbsp;</p>      <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2"> La oxidaci&oacute;n selectiva de albendazol, fenbendazol, y otros sulfuros bencimidaz&oacute;licos con peryodato de sodio en medio &aacute;cido da los correspondientes sulf&oacute;xidos y sulfonas. En contraste, triclabendazol y otros derivados de 2&#45;metiltiobencimidazoles no pueden ser oxidados bajo las mismas condiciones suaves con este reactivo, pero s&iacute; con un agente oxidante fuerte como MCPBA.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> Albendazol, fenbendazol, triclabendazol, metabolitos, <i>S</i>&#45;oxidaci&oacute;n.</font></p>     <p align="justify">&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><a href="../pdf/jmcs/v49n4/v49n4a8.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p> 	    <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Acknowledgements</b></font></p>  	    <p align="justify"><font face="verdana" size="2">We are grateful to the Departamento Sistemas Biol&oacute;gicos from the UAM&#45;X for the financial support for this work and to DGAPA, UNAM, for financing project IN 202101. We are also grateful to Rosa Isela del Villar, Georgina Duarte, Margarita Guzm&aacute;n and Marisela Guti&eacute;rrez, from the Facultad de Qu&iacute;mica, UNAM, for the determination of the spectra.</font></p> 	    <p align="justify">&nbsp;</p>      <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">1.&nbsp;Gyurik, R. J.; Chow, A. W.; Zaber, B.; Brunner, E. L.; Miller, J. A.; Villani, A. J.; Petka, L. A.; Parish, R. C. <i>Drug Metabolism Disposition.</i> <b>1981</b>, <i>9</i>, 503&#45;508.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893038&pid=S1870-249X200500040000800001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">2.&nbsp;Averkin, E. A.; Beard, C. C.; Dvorak, C. A.; Edwards, J. A.; </font><font face="verdana" size="2">Fried, J. H.; Kilian, J. G.; Schiltz, R. A. <i>J. Med. Chem.</i> <b>1975</b>, <i>18,</i> 1164&#45;1166.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893040&pid=S1870-249X200500040000800002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">3.&nbsp;Lecaillon, J. B.; Godbillon, J.; Campestrini, J.; Naquira, C.; Miranda, L.; Pacheco, R.; Mull, R.; Poltera, A. A. <i>J. Clin. Pharmacol.</i> <b>1998</b>, <i>45</i>, 601&#45;604.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893042&pid=S1870-249X200500040000800003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">4.&nbsp;Alvarez, L. I.; S&aacute;nchez, S. F.; Lanusse, C. E. <i>J. Vet. Pharmacol. Therap.</i> <b>1999</b>, <i>22,</i> 77&#45;86.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893044&pid=S1870-249X200500040000800004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">5.&nbsp;Virkel, G.; Lifschitz, A.; Soraci, A.; Sansinanea, A.; Lanusse, C. <i>Xenobiotica</i> <b>2000</b>, <i>30,</i> 381&#45;393.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893046&pid=S1870-249X200500040000800005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">6.&nbsp;Murray, M.; Hudson, A. M.; Yassa, V. <i>Chem. Res. Toxicol.</i> <b>1992</b>, </font><font face="verdana" size="2"><i>5</i>, 60&#45;66.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893048&pid=S1870-249X200500040000800006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2">7.&nbsp;Szprengier&#45;Juszkiewicz, T.; Semeniuk, S.; Wlodarczyk, B. <i>Bull. </i></font><font face="verdana" size="2"><i>Vet. Inst. Pulawy.</i> <b>2002</b>, <i>46,</i> 119&#45;125.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893050&pid=S1870-249X200500040000800007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">8.&nbsp;Sanyal, P. K. <i>Indian J. Pharmacol.</i> <b>1994</b>, <i>26,</i> 200&#45;203.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893052&pid=S1870-249X200500040000800008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">9.&nbsp;Takeba, K.; Fujinuma, K.; Sakamoto, M.; Miyazaki, T.; Oka, H.; Itoh, Y.; Nakazawa, H. <i>J. Chromatog. A.</i> <b>2000</b>, <i>882</i>, 99&#45;107.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893054&pid=S1870-249X200500040000800009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">10.&nbsp;De Laurentis, N.; Milillo, M. A.; Bruno, S. <i>Pharm. Pharmacol. </i></font><font face="verdana" size="2"><i>Lett.</i> <b>1996</b>, <i>6,</i> 51&#45;53.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893056&pid=S1870-249X200500040000800010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">11.&nbsp;Xie, J.H.; Hu, Y.Z. <i>Xhejiang Daxue Xuebao Yixueban.</i> 31, 45 </font><font face="verdana" size="2">(2002);    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893058&pid=S1870-249X200500040000800011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> <i>Chem. Abstr.</i> <b>138</b>, 73201(2002).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893059&pid=S1870-249X200500040000800012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">12.&nbsp;Brandon, D. L.; Binder, R. G.; Bates, A. H.; Montangue, W. C. <i>J. </i></font><font face="verdana" size="2"><i>Agric. Food Chem.</i> <b>1994</b>, <i>42</i>, 1588&#45;1594.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893061&pid=S1870-249X200500040000800013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">13.&nbsp;Iddon, B.; Kutschy, P.; Robinson, A.G.; Suschitzky, H.; Kramer, W.; Neugebauer, F.A. <i>J. Chem. Soc. Perkin Trans. 1.</i> <b>1992</b>, 3129&#45;3134.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893063&pid=S1870-249X200500040000800014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">14.&nbsp;Hudlicky, M. Oxidation in Organic Chemistry. ACS Monograph 186. American Chemical Society. Washington D.C. <b>1990</b>, 252.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893065&pid=S1870-249X200500040000800015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">15.&nbsp;Leonard, N. J.; Johnson, C. R. <i>J. Org. Chem.</i> <b>1961</b>, <i>27</i>, 282&#45;284.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893067&pid=S1870-249X200500040000800016&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">16.&nbsp;Hiskey, R. G.; Harpold, M. A. <i>J. Org. Chem.</i> <b>1967</b>, <i>32</i>, 3191-3194.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893069&pid=S1870-249X200500040000800017&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">17.&nbsp;Evans, B.J.; Doi, T.; Musker, W. K. <i>J. Org. Chem.</i> <b>1990</b>, <i>55</i>, </font><font face="verdana" size="2">2580&#45;2586.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893071&pid=S1870-249X200500040000800018&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">18.&nbsp;Hay, M. P.; Wilson, W. R.; Denny, W. A. <i>Tetrahedron</i> <b>2000</b>, <i>56</i>, </font><font face="verdana" size="2">645&#45;657.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893073&pid=S1870-249X200500040000800019&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">19.&nbsp;Hern&aacute;ndez&#45;Campos, A.; Ibarra&#45;Velarde, F.; Vera&#45;Montenegro, Y.; Rivera&#45;Fern&aacute;ndez, N.; Castillo, R. <i>Chem. Pharm. Bull.</i> <b>2002</b>, </font><font face="verdana" size="2"><i>50,</i> 649&#45;652.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893075&pid=S1870-249X200500040000800020&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">20.&nbsp;Navarrete&#45;V&aacute;zquez, G.; Y&eacute;pez, L.; Hern&aacute;ndez&#45;Campos, A.; Tapia, A.; Hern&aacute;ndez&#45;Luis, F.; Cedillo, R.; Gonz&aacute;lez, J.; Mart&iacute;nez&#45;Fern&aacute;ndez, A.; Mart&iacute;nez&#45;Grueiro, M.; Castillo, R. <i>Bioorg. Med. Chem.,</i> <b>2003</b>, <i>11</i>, 4615&#45;4622.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893077&pid=S1870-249X200500040000800021&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">21.&nbsp;Kong, J.; White, C. A.; Krylov, A. I.; Sherrill, C. D.; Adamson, R. D.; Furlani, T. R.; Lee, M. S.; Lee, A. M.; Gwaltney, S. R.; Adams, T. R.; Ochsenfeld, C.; Gilbert, A. T. B.; Kedziora, G. S.; Rassolov, V. A.; Maurice, D. R.; Nair, N.; Shao, Y.; Besley, N. A.; Maslen, P. E.; Dombroski, J. P.; Daschel, H.; Zhang, W.; Korambath, P. P.; Baker, J.; Byrd, E. F. C.; Van Vooris, T.; Oumi, M.; Hirata, S.; Hsu, C.&#45;P.; Ishikawa, N.; Florian, J.; </font><font face="verdana" size="2">Warshel, A.; Johnson, B. G.; Gill, P. M. W., Head&#45;Gordon, M.; Pople, J. A. J. <i>Comput. Chem.</i> <b>2000</b>, <i>21,</i> 1532&#45;1548.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4893079&pid=S1870-249X200500040000800022&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gyurik]]></surname>
<given-names><![CDATA[R. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Chow]]></surname>
<given-names><![CDATA[A. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Zaber]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Brunner]]></surname>
<given-names><![CDATA[E. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Villani]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Petka]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Parish]]></surname>
<given-names><![CDATA[R. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Drug Metabolism Disposition]]></source>
<year>1981</year>
<volume>9</volume>
<page-range>503-508</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Averkin]]></surname>
<given-names><![CDATA[E. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Beard]]></surname>
<given-names><![CDATA[C. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Dvorak]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Edwards]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Fried]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Kilian]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Schiltz]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Med. Chem.]]></source>
<year>1975</year>
<volume>18</volume>
<page-range>1164-1166</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lecaillon]]></surname>
<given-names><![CDATA[J. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Godbillon]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Campestrini]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Naquira]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Miranda]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Pacheco]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Mull]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Poltera]]></surname>
<given-names><![CDATA[A. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Clin. Pharmacol.]]></source>
<year>1998</year>
<volume>45</volume>
<page-range>601-604</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alvarez]]></surname>
<given-names><![CDATA[L. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[S. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Lanusse]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Vet. Pharmacol. Therap.]]></source>
<year>1999</year>
<volume>22</volume>
<page-range>77-86</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Virkel]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Lifschitz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Soraci]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Sansinanea]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lanusse]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Xenobiotica]]></source>
<year>2000</year>
<volume>30</volume>
<page-range>381-393</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murray]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hudson]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Yassa]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Chem. Res. Toxicol.]]></source>
<year>1992</year>
<volume>5</volume>
<page-range>60-66</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Szprengier-Juszkiewicz]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Semeniuk]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Wlodarczyk]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Bull. Vet. Inst. Pulawy.]]></source>
<year>2002</year>
<volume>46</volume>
<page-range>119-125</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sanyal]]></surname>
<given-names><![CDATA[P. K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Indian J. Pharmacol.]]></source>
<year>1994</year>
<volume>26</volume>
<page-range>200-203</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Takeba]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Fujinuma]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sakamoto]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Miyazaki]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Oka]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Itoh]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Nakazawa]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Chromatog. A.]]></source>
<year>2000</year>
<volume>882</volume>
<page-range>99-107</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Laurentis]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Milillo]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bruno]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Pharm. Pharmacol. Lett.]]></source>
<year>1996</year>
<volume>6</volume>
<page-range>51-53</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Xie]]></surname>
<given-names><![CDATA[J.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[Y.Z.]]></given-names>
</name>
</person-group>
<source><![CDATA[Xhejiang Daxue Xuebao Yixueban]]></source>
<year>2002</year>
<volume>31</volume>
<page-range>45</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<source><![CDATA[Chem. Abstr.]]></source>
<year>2002</year>
<volume>138</volume>
<page-range>73201</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brandon]]></surname>
<given-names><![CDATA[D. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Binder]]></surname>
<given-names><![CDATA[R. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Bates]]></surname>
<given-names><![CDATA[A. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Montangue]]></surname>
<given-names><![CDATA[W. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Agric. Food Chem.]]></source>
<year>1994</year>
<volume>42</volume>
<page-range>1588-1594</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Iddon]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Kutschy]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Suschitzky]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Kramer]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Neugebauer]]></surname>
<given-names><![CDATA[F.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Chem. Soc. Perkin Trans. 1]]></source>
<year>1992</year>
<page-range>3129-3134</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hudlicky]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Oxidation in Organic Chemistry]]></source>
<year>1990</year>
<volume>186</volume>
<page-range>252</page-range><publisher-loc><![CDATA[Washington^eD.C. D.C.]]></publisher-loc>
<publisher-name><![CDATA[American Chemical Society]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leonard]]></surname>
<given-names><![CDATA[N. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[C. R.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Org. Chem.]]></source>
<year>1961</year>
<volume>27</volume>
<page-range>282-284</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hiskey]]></surname>
<given-names><![CDATA[R. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Harpold]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Org. Chem.]]></source>
<year>1967</year>
<volume>32</volume>
<page-range>3191-3194</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Evans]]></surname>
<given-names><![CDATA[B.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Doi]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Musker]]></surname>
<given-names><![CDATA[W. K.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Org. Chem.]]></source>
<year>1990</year>
<volume>55</volume>
<page-range>2580-2586</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hay]]></surname>
<given-names><![CDATA[M. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Wilson]]></surname>
<given-names><![CDATA[W. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Denny]]></surname>
<given-names><![CDATA[W. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Tetrahedron]]></source>
<year>2000</year>
<volume>56</volume>
<page-range>645-657</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández-Campos]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ibarra-Velarde]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Vera-Montenegro]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Rivera-Fernández]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Chem. Pharm. Bull.]]></source>
<year>2002</year>
<volume>50</volume>
<page-range>649-652</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Navarrete-Vázquez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Yépez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Campos]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tapia]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Luis]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Cedillo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Fernández]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Grueiro]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Bioorg. Med. Chem.]]></source>
<year>2003</year>
<volume>11</volume>
<page-range>4615-4622</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kong]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[White]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Krylov]]></surname>
<given-names><![CDATA[A. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Sherrill]]></surname>
<given-names><![CDATA[C. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Adamson]]></surname>
<given-names><![CDATA[R. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Furlani]]></surname>
<given-names><![CDATA[T. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[M. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gwaltney]]></surname>
<given-names><![CDATA[S. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Adams]]></surname>
<given-names><![CDATA[T. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ochsenfeld]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gilbert]]></surname>
<given-names><![CDATA[A. T. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Kedziora]]></surname>
<given-names><![CDATA[G. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rassolov]]></surname>
<given-names><![CDATA[V. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Maurice]]></surname>
<given-names><![CDATA[D. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Nair]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Shao]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Besley]]></surname>
<given-names><![CDATA[N. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Maslen]]></surname>
<given-names><![CDATA[P. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Dombroski]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Daschel]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Korambath]]></surname>
<given-names><![CDATA[P. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Baker]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Byrd]]></surname>
<given-names><![CDATA[E. F. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Van Vooris]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Oumi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hirata]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hsu]]></surname>
<given-names><![CDATA[C.-P.]]></given-names>
</name>
<name>
<surname><![CDATA[Ishikawa]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Florian]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Warshel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[B. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Gill]]></surname>
<given-names><![CDATA[P. M. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Head-Gordon]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Pople]]></surname>
<given-names><![CDATA[J. A. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Comput. Chem.]]></source>
<year>2000</year>
<volume>21</volume>
<page-range>1532-1548</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
