Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5224603 | Tetrahedron | 2010 | 5 Pages |
Abstract
Four new nortriterpenoids, pre-schisanartanins C and D (1-2) with pre-schisanartane backbone, and propintrilactones A and B (3-4) possessed wuweiziartane framework, were isolated from the acetone extract of the stems of Schisandra propinqua var. propinqua. Their structures were characterized by extensive spectroscopic analyses. Compounds 3 and 4 existed as a pair of slowly interconverting diastereomers at room temperature; their absolute configuration was established by CD methods. Compounds 1-4 showed no cytotoxicity against K562, A549, and HT-29 human cancer cells.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Chun Lei, Wei-Lie Xiao, Sheng-Xiong Huang, Ji-Jun Chen, Jian-Xin Pu, Han-Dong Sun,