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A Novel Atisane Diterpenoid from Spiraea japonica var. acuta
Author(s) -
Liu HaiYang,
Gao Suo,
Di YingTong,
Chen ChangXiang,
Lü Yang,
Zhang Li,
Zheng QiTai,
Hao XiaoJiang
Publication year - 2007
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.200790140
Subject(s) - chemistry , terpenoid , moiety , stereochemistry , japonica , lactone , botany , biology
A novel ent ‐atisane lactone, spiramilactone E ( 1 ), was isolated from Spiraea japonica var. acuta Yu . Its structure was elucidated by extensive spectroscopic analyses, and unequivocally confirmed by single‐crystal X‐ray diffraction ( Fig. 2 ). Compound 1 contains a γ ‐lactone moiety between the 6‐OH function and C(20), and β‐ configuration for the 7‐OH group, in contrast to known related diterpenes previously isolated from the S. japonica complex.