Sesquineolignans and other constituents from the seeds of Joannesia princeps.

Reiner Waibel,Gerd Benirschke,Monika Benirschke,Hans Achenbach

Phytochemistry（2003）

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摘要

From the methanolic extract of the seeds of the Brazilian Joannesia princeps 3,3′-bisdemethylpinoresinol and six new sesquineolignans were isolated besides the known neolignans americanol A, isoamericanol A and isoamericanin A which were found to be the major constituents. A method was developed to distinguish americanol- from isoamericanol-type compounds spectroscopically.

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关键词

Joannesia princeps,Euphorbiaceae,Sesquineolignans,(±)-3 ,3′-Bisdemethylpinoresinol,Americanol A,Isoamericanol A,Isoamericanin A,Princepin,Isoprincepin,Isoamericanols B,Isoamericanols C

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