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Grosulfeimin and New Related Guaianolides fromCynara ScolymusL

 

作者: P. Barbetti,   I. Chiappini,   G. Fardella,   G. Grandolini,  

 

期刊: Natural Product Letters  （Taylor Available online 1993）
卷期: Volume 3, issue 1  

页码: 21-30

 

ISSN:1057-5634

 

年代: 1993

 

DOI:10.1080/10575639308043833

 

出版商: Taylor & Francis Group

 

关键词: Cynara scolymusL.;sesquiterpene lactones;sulfonyl guaianolides;guaianolides

 

数据来源: Taylor

 

摘要:

Three new guaianolides, 11-H-13-methylsulfonylgrosheimin (5) (grosulfeimin), 8-deoxy-11, 13-dihydroxygrosheimin (7) and 8-deoxy-11-hydroxy-13-chlorogrosheimin (8) have been isolated from the leaves ofCynara scolymusL. Furthermore, the already known 8-epigrosheimin (9) has been isolated for the first time from this source. The structures were determined by both spectroscopical methods and chemical correlations.

 

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