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Wickramasinghe M. Bandaranayake Subadra Karunanayake Subramaniam Sotheeswaran M.Uvais S. Sultanbawa Sinnathamby Balasubramaniam 《Phytochemistry》1977,16(6):699-701
The bark and/or timber extracts of Stemonoporus affinis, S. cordifolius, S. elegans, S. lancifolius, S. oblongifolius and S. petiolaris have been studied. The following compounds have been isolated: α-amyrin, δ-amyrenone, ursolic acid, sitosterol, sitosteryl-o-methoxybenzoate, ursonic acid, acetylursolic acid, 4-hydroxybenzaldehyde, methyl 2,4-dihydroxybenzoate, 2α-hydroxyursolic acid and bergenin. TLC examination of extracts of S. petiolaris, S. canaliculatus and S. reticulatus is reported. Triterpenoid taxonomic markers are summarized for Dipterocarpus, Doona, Shorea and Stemonoporus. 相似文献