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Three New 24‐Nortriterpenoids from the Roots of Ilex asprella
Author(s) -
Jiang Kun,
Bai JunQi,
Chang Jun,
Tan JunJie,
Qu ShiJin,
Luo HongFeng,
Tan ChangHeng,
Zhu DaYuan
Publication year - 2014
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.201300147
Subject(s) - chemistry , epoxy , stereochemistry , organic chemistry
Asprellols A–C ( 1 – 3 , resp.), three new 24‐nortriterpenoids, were isolated from the CHCl 3 ‐soluble fraction of 95% EtOH extract of the roots of Ilex asprella , together with a known nortriterpenoid. The structures of the new compounds were elucidated as 2,6 β ,20 β ‐trihydroxy‐3‐oxo‐11 α ,12 α ‐epoxy‐24‐norursa‐1,4‐dien‐28,13 β ‐olide ( 1 ), 2,6 β ‐dihydroxy‐3‐oxo‐11 α ,12 α ‐epoxy‐24‐norursa‐1,4,20(30)‐trien‐28,13 β ‐olide ( 2 ), and 2,6 β ‐dihydroxy‐3‐oxo‐11 α ,12 α ‐epoxy‐24‐noroleana‐1,4‐dien‐28,13 β ‐olide ( 3 ) on the basis of spectroscopic analyses.