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Pseudolarolides O and P, Two Novel Triterpene Dilactones from Pseudolarix kaempferi
Author(s) -
Chen GuoFu,
Tan ChangHeng,
Li ZhuLian,
Jiang ShanHao,
Zhu DaYuan
Publication year - 2003
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.200390079
Subject(s) - chemistry , pinaceae , triterpene , terpene , triterpenoid , stereochemistry , botany , pinus <genus> , medicine , alternative medicine , pathology , biology
Pseudolarolides O ( 1 ) and P ( 2 ), two novel triterpenoids with a cycloartane‐type framework, were isolated from the seeds of Pseudolarix kaempferi Gord. (Pinaceae). Their structures were elucidated as (16 R ,23 S ,25 R )‐16,23‐epoxy‐3,4 : 9,10‐disecocycloartan‐1(10),9(11)‐diene‐3(4),26(23)‐diolide ( 1 ), and (9 S ,16 R ,23 S ,25 R )‐1,9 : 16,23‐diepoxy‐8,9 : 9,10‐disecocycloartan‐1(29),5(6),10(19)‐triene‐3(4),26(23)‐diolide ( 2 ), respectively, on the basis of spectroscopic techniques and X‐ray‐diffraction studies.
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