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Two Novel abeo ‐Dammaranes with a Six‐Membered Acetal Moiety from Aglaia perviridis Hiern
Author(s) -
Yang ShuMin,
Tan ChangHeng,
Luo HongFeng,
Wang DongXiao,
Zhu DaYuan
Publication year - 2008
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.200890038
Subject(s) - chemistry , moiety , stereochemistry , epoxy , acetal , organic chemistry
Abstract Two novel triterpenoids, named (20 S ,24 S )‐20,24‐epoxy‐24‐methoxy‐23(24→25) abeo ‐dammaran‐3‐one (=(20 S ,25 S )‐20,25‐epoxy‐25‐methoxy‐24,24‐dimethyl‐26,27‐dinordammaran‐3‐one; 1 ), (3 α ,20 S ,24 S )‐ 20,24‐epoxy‐24‐methoxy‐23(24→25) abeo ‐dammaran‐3‐ol‐acetate (=(3 α ,20 S ,25 S )‐20,25‐epoxy‐25‐methoxy‐24,24‐dimethyl‐26,27‐dinordammaran‐3‐ol acetate; 2 ), together with six known dammaranes, were isolated from the EtOH extract of the twigs of Aglaia perviridis by chromatographic methods. The structures of 1 and 2 were elucidated on the basis of spectral data.