Dihydrobenzofuran lignans from Boreava orientalis

Phytochemistry
1996.0

Abstract

Two new dihydrobenzofuran lignanamides and three known dihydrobenzofuran lignans have been isolated from fruits of Boreava orientalis. The structures of the two new compounds were established as cis- and trans- (2R•3S)-2•3-dihydr•-2-(4-hydr•xy-3-meth•xypheny•)-3-hydr•xymethy•-7-meth•xybenz•furan-5-pr•pen-• ic(1,5-dimethyl)glutamate amide on the bases of chemical and spectral evidence, including NOE, 2D shiftcorrelation and HMBC NMR experiments.

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