Bidesmosidic saponins from the fruits of Diploclisia glaucescens.
Chemical investigation of methanol extract of the fruits of Diploclisia glaucescens (Menispermaceae) furnished two new bidesmosidic saponins 3-O-[beta-D-glucopyranosyl-(1-->3)-beta-D-glucopyranosyl]phytolaccagenic acid 28-O-beta-D-glucopyranosyl ester, 3-O-[alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl]phytolaccagenic acid 28-O-beta-D-glucopyranosyl ester, together with known 3-O-beta-D-glucopyranosylphytolaccagenic acid 28-O-beta-D-glucopyranosyl ester and 3-O-[alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl]serjanic acid 28-O-beta-D-glucopyranosyl ester. The last saponin is reported for the first time from the family Menispermaceae.
Jayasinghe
Lalith
L
Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka. lalith@ifs.ac.lk
Hara
Noriyuki
N
Fujimoto
Yoshinori
Y
D000107:Acetylation; D005638:Fruit / Q000737:chemistry; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D029583:Menispermaceae / Q000737:chemistry*; D015394:Molecular Structure; D009904:Optical Rotation; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013188:Sri Lanka
D012503:Saponins