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Steroidal sterols from Allium ascalonicum
Author(s) -
Mai Nguyen Thi,
Lan Hoang Thi Tuyet,
Trang Do Thi,
Dung Duong Thi,
Tai Bui Huu,
Nhiem Nguyen Xuan,
Van Kiem Phan
Publication year - 2019
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.2019000149
Subject(s) - allium , chemistry , genus , triol , stereochemistry , botany , biology , organic chemistry , diol
Using combined chromatographic methods, four steroidal sterols were isolated and characterized from methanol extract of the roots of Allium ascalonicum . Their chemical structures were elucidate as 26‐ O ‐ β‐ D‐glucopyranosyl‐(25 R )‐furost‐5,20(22)‐diene‐1 β, 3 β, 26‐triol 1‐ O ‐α‐L‐rhamnopyranosyl‐(1→2)‐ α ‐L‐arabinopyranoside ( 1 ), 26‐ O ‐ β‐ D‐glucopyranosyl‐(25 S )‐furost‐5,20(22)‐diene‐1 β, 3 β, 26‐triol 1‐ O ‐α‐L‐rhamnopyranosyl‐(1→2)‐ α ‐L‐arabinopyranoside ( 2 ), (24 S ,25 S )‐3 β ,24‐dihydroxyspirost‐5‐en‐1 β ‐yl O ‐ α ‐L‐rhamnospyranosyl‐(1→2)‐ α ‐L‐arabinopyranoside ( 3 ), 1 β, 3 β ‐dihydroxypegna‐5,16‐diene‐20‐one 1‐ O ‐ α ‐L‐rhamnopyranosyl‐(1→2)‐ α ‐L‐arabinopyranoside ( 4 ) by a combination of extensive 1D‐, 2D‐NMR, HRESIMS spectroscopic data analysis and in comparison with those reported in the literature. This is the first report of 4 from Allium genus.