Artículos de revistas
Clerodane-type diterpenes from the seed pods of Hymenaea courbaril var. stilbocarpa
Phytochemistry. Pergamon-elsevier Science Ltd, v. 58, n. 8, n. 1153, n. 1157, 2001.
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. (C) 2001 Elsevier Science Ltd. All rights reserved.58811531157