FOUR COMPOUNDS FROM UVARIA SIAMENSIS

Abstract

Uvaria siamensis has been used as traditional medicine in Asian countries, especially in Southeast Asia such as Laos, Cambodia, Thailand, and Vietnam. This plant is native to Vietnam. This study was done to investigate the phytochemicals of plants of Uvaria siamensis grown in Thailand. Four compounds tamgermanetin (1), trans-N-caffeoyltyramine (2), 6β-hydroxystigmast-4-en-3-one (3), and cerevesterol (4) were isolated from the ethyl acetate extract of Uvaria siamensis. Their chemical structures were elucidated by comparing their spectroscopic data with reported data in the literature.