<?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>S1870-249X2024000200325</article-id>
<article-id pub-id-type="doi">10.29356/jmcs.v68i2.2061</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Synthesis and NMR characterization of Bile Acid Derivatives Bearing Ugi 4CR-Modified Side Chains]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vazquez-Chavez]]></surname>
<given-names><![CDATA[Josué]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Verdeja-Perdomo]]></surname>
<given-names><![CDATA[Brian A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Iglesias-Arteaga]]></surname>
<given-names><![CDATA[Martin A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Química ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<volume>68</volume>
<numero>2</numero>
<fpage>325</fpage>
<lpage>331</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2024000200325&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2024000200325&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2024000200325&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract. The application of the four-component Ugi reaction for the synthesis of five bile acid derivatives bearing modified side chains is described. The unambiguous structural characterization and assignment of the functional 1H NMR signals and all 13C{1H} NMR chemical shifts are presented.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen. Se describe la aplicación de la reacción de cuatro componentes de Ugi a la síntesis de cinco derivados de ácidos biliares que portan cadenas laterales modificadas. Se presenta la caracterización estructural inequívoca y la asignación de las señales funcionales de 1H RMN y de todos los desplazamientos químicos de 13C{1H} RMN.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Bile acids]]></kwd>
<kwd lng="en"><![CDATA[Ugi 4CR]]></kwd>
<kwd lng="en"><![CDATA[1H NMR]]></kwd>
<kwd lng="en"><![CDATA[13C{1H} NMR]]></kwd>
<kwd lng="es"><![CDATA[Ácidos biliares]]></kwd>
<kwd lng="es"><![CDATA[Ugi 4CR]]></kwd>
<kwd lng="es"><![CDATA[1H RMN]]></kwd>
<kwd lng="es"><![CDATA[13C{1H} RMN]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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