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Two Novel ent ‐Abietane Diterpenoids from Isodon xerophilus
Author(s) -
Niu XueMei,
Li ShengHong,
Na Zhi,
Lin ZhongWen,
Sun HanDong
Publication year - 2004
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.200490176
Subject(s) - abietane , chemistry , diterpene , stereochemistry , lactone , terpene
The tow novel ent ‐abietane diterpenoids 1 and 2 , named xerophilusins R and S, respectively (=(11 β )‐6,11‐dihydroxy‐7,20‐dioxo‐ ent ‐abieta‐5,8(14),15(17)‐trien‐16‐oic acid δ ‐lactone and (11 β ,15 S )‐6,11,17‐trihydroxy‐7,20‐dioxo‐ ent ‐abieta‐5,8(14)‐dien‐16‐oic acid δ ‐lactone, resp.), were isolated from Isodon xerophilus (C. J. W u et H. W. L I ) H. H ara . Their structures were established by spectroscopic means.