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Diversity of Sesquiterpenoids from Carpesium cernuum
Author(s) -
Liu LeiLei,
Wang Rui,
Yang JunLi,
Shi YanPing
Publication year - 2010
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.200900275
Subject(s) - chemistry , sesquiterpene , terpene , stereochemistry , two dimensional nuclear magnetic resonance spectroscopy
Two new sesquiterpene lactones, 6 β ‐hydroxy‐8 α ‐ethoxyeremophil‐7(11)‐en‐12,8 β ‐olide ( 1 ) and 4 β ,10 β ‐dihydroxy‐1 αH ,5 αH ,11 αH ‐guaian‐12,8 β ‐olide ( 2 ), together with 22 known sesquiterpenoids with various structural types, were isolated from Carpesium cernuum (Compositae). Their structures and configurations were elucidated by extensive 1D‐ and 2D‐NMR spectroscopic analysis in combination with MS experiments, and comparison with literature data of related compounds.