Clerodane-type diterpenes from the seed pods of Hymenaea courbaril var. stilbocarpa. |
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| Authors: | R T Nogueira G J Shepherd A Laverde A J Marsaioli P M Imamura |
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| Affiliation: | Instituto de Química, UNICAMP, CP 6154, Campinas, 13083-970, SP, Brazil. |
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| Abstract: | Three known and two new diterpenes were isolated from the ethyl acetate extract of Hymenaea courbaril var. stilbocarpa seed pods. One of the compounds was elucidated as (5R*,8S*,9S*,10R*)-cleroda-3,13E-dien-15-oic acid and the other was elucidated, after treatment with diazomethane, as methyl (5S*,8S*,9S*,10R*)-cleroda-3,13E-dien-15-oate. The known diterpenes were identified as (-)-ozic acid, (-)-isoozic acid and (-)-kovalenic acid which were characterized as their methyl ester derivatives. |
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