Two novel butanol rhamnosides from an Indian traditional herb, Euphorbia hirta.
Two novel butanol rhamnopyranosides (1 and 2), along with nine known compounds (3-11), have been isolated from various non-polar and polar extracts of an Indian traditional herb, Euphorbia hirta. The structures of the new compounds were elucidated as n-butyl-1-O-beta-L-rhamnopyranoside (1) and n-butyl-1-O-alpha-L-rhamnopyranoside (2) by spectroscopic methods including IR, HR-FABMS, 1D and 2D NMR techniques.
Mallavadhani
U V
UV
Herbal Drugs and Bio-Remedies, Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, India. uvmavadani@rrlbhu.res.in
Narasimhan
K
K
D000440:Butanols / Q000302:isolation & purification*; D005591:Chemical Fractionation; D028481:Euphorbia / Q000737:chemistry*; D006027:Glycosides / Q000302:isolation & purification*; D007194:India; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000302:isolation & purification*; D012210:Rhamnose / Q000737:chemistry
D000440:Butanols; D006027:Glycosides; D010936:Plant Extracts; D012210:Rhamnose