Premium
Two New Triterpene Saponins from Acanthophyllum laxiusculum
Author(s) -
Pertuit David,
Baghery Lotfabad Tayebe,
MitaineOffer AnneClaire,
Miyamoto Tomofumi,
Tanaka Chiaki,
LacailleDubois MarieAleth
Publication year - 2015
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.201400253
Subject(s) - chemistry , triterpene , stereochemistry , glycoside , two dimensional nuclear magnetic resonance spectroscopy , medicine , alternative medicine , pathology
Two new triterpene glycosides, 1 and 2 , together with three known ones, were isolated from roots of Acanthophyllum laxiusculum Schiman ‐ Czeika . The structures of the new compounds were established by extensive 1D‐ and 2D‐NMR spectroscopic experiments and MS analyses as 23‐ O ‐ β ‐ D ‐galactopyranosylgypsogenic acid 28‐ O ‐{ β ‐ D ‐glucopyranosyl‐(1→2)‐6‐ O ‐[4‐carboxy‐3‐hydroxy‐3‐methyl‐1‐oxobutyl]‐ β ‐ D ‐glucopyranosyl‐(1→6)}‐[ β ‐ D ‐glucopyranosyl‐(1→3)]‐ β ‐ D ‐galactopyranosyl ester ( 1 ) and gypsogenic acid 28‐ O ‐{ β ‐ D ‐glucopyranosyl‐(1→2)‐6‐ O ‐[4‐carboxy‐3‐hydroxy‐3‐methyl‐1‐oxobutyl]‐ β ‐ D ‐glucopyranosyl‐(1→6)}‐[ β ‐ D ‐glucopyranosyl‐(1→3)]‐ β ‐ D ‐galactopyranosyl ester ( 2 ).