Triterpenoid components from Rosa cymosa / 中草药

ABSTRACT

Objective: To study the triterpenoid components of Rosa cymosa. Methods: Compounds were isolated by repeated chromatography on silica gel column. The structures were elucidated by chemical and spectroscopic methods. Results: Thirteen triterpenoids were isolated and identified as 2-oxo-pomolic acid (1), 2α, 19α-dihydroxy-3-oxo-12-ursen-28-oic acid (2), 2-acetyl tormentic acid (3), pomolic acid (4), euscaphic acid (5), arjunic acid (6), myrianthic acid (7), arjunetin (8), rosamultin (9), kaji-ichigoside F1 (10), 2α, 3α, 19α, 23-tetrahydroxy-12-ursen-28-O-β-D-glucoside (11), fupenzic acid (12), and cecropiacic acid 3-methyl ester (13). Conclusion: Compounds 1-4, 7, and 11-13 are obtained from this plant for the first time.