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Three New Cyclolanostane Triterpenoids from the Ethanol Extract of the Stems of Kadsura heteroclita
Author(s) -
Wang Wei,
Liu JinZhi,
Ma XiaoChi,
Yang Min,
Wang WeiXing,
Xu ZhengRen,
Liu Peng,
Guo DeAn
Publication year - 2006
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.200690180
Subject(s) - chemistry , triterpenoid , circular dichroism , two dimensional nuclear magnetic resonance spectroscopy , mass spectrometry , high resolution , spectroscopy , nuclear magnetic resonance spectroscopy , ethanol , stereochemistry , extraction (chemistry) , chromatography , organic chemistry , geology , physics , remote sensing , quantum mechanics
Three new cyclolanostane triterpenoids, 1 – 3 , were isolated from the EtOH extract of the stems of Kadsura heteroclita. Their structures and configurations were determined by extensive 1D‐ and 2D‐NMR spectroscopy, high‐resolution mass spectrometry (HR‐MS), and circular dichroism (CD) spectroscopy. The three new compounds are likely to be artificial products formed during the extraction process, and might be derived from schisanlactone E ( 4 ) and two related double‐bond isomers, respectively.