Chemical constituents from Shefflera tribracteolata in Vietnam ☆

The genus Schefflera which belongs to the Araliaceae family with 25 species is alarge genus of many species widely distributed in Vietnam. (Shefflera tribracteolata Bui. belongs to family Araliaceae. The leaves of this plant were collected in Vu Quang- Ha Tinh. Ginsenoside Rgl, { 3β, 6α, 12 β, 20S- tetrahidroxydammar-24-en 6-O-[β -D- glucopyranoside]}; gypenoside XVII {(3β,12β)- 20- {[6- O- (β- D- glucopyranosyl)- β- D- glucopyranosyl]oxy}- 12- hydroxydammar- 24- en- 3- yl β- D- glucopyranoside} were isolated from the butanol extract of Shefflera tribracteolata. The structures of these compounds were elucidated using a combination of UV, IR, 1D and 2D NMR techniques (1H-, 13C-NMR, COSY, HSQC and HMBC) and MS analyses