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Revista latinoamericana de química
versão impressa ISSN 0370-5943
Resumo
DZIB-REYES, Eugenia V.; GARCIA-SOSA, Karlina; SIMA-POLANCO, Paulino e PENA-RODRIGUEZ, Luis M.. Diterpenoids from the root extract of Chiococca alba. Rev. latinoam. quím [online]. 2012, vol.40, n.3, pp.123-129. ISSN 0370-5943.
Two new ent-kaurane diterpenes, 1-hydroxy-18-nor-kaur-4,16-dien-3-one (1) and 15-hydroxy-kaur-16-en-3-one (2), along with the four known metabolites kaur-16-en-19-ol (3), kaurenoic acid (4), merilactone (5), and ribenone (6), and a mixture of stigmasterol and β-sitosterol were isolated from the ethanolic root extract of Chiococca alba. Chemical structures of the different metabolites were established through the interpretation of their spectroscopic data and/or by comparing them with those reported in the literature.
Palavras-chave : Rubiaceae; Chiococca alba; kaurane; pimarane; labdane; diterpenes.