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Two biflavonoids from Ouratea flava stem bark.

作者信息

Mbing Joséphine Ngo, Pegnyemb Dieudonné Emmanuel, Tih Raphael Ghogomu, Sondengam Beibam Lucas, Blond Alain, Bodo Bernard

机构信息

Centre de Recherches en Plantes Médicinales et Médecine Traditionnelle, I.M.P.M., B.P. 6163, Yaoundé, Cameroon.

出版信息

Phytochemistry. 2003 Jun;63(4):427-31. doi: 10.1016/s0031-9422(03)00161-4.

DOI:10.1016/s0031-9422(03)00161-4
PMID:12770592
Abstract

In a chemical investigation on the stem bark of Ouratea flava, two biflavonoids: 1-[3-(2,4-dihydroxy-benzoyl)-4,5,6-trihydroxy-2-(4-hydroxy-phenyl)-benzofuran-7-yl] -3-(4-hydroxy-phenyl) -propenone (flavumone A) and 3-(2,4-dihydroxy-benzoyl)-4-hydroxy-2,7-bis-(4-hydroxy-phenyl) -7,8- dihydro-furo[2,3-f]chromen-9-on (flavumone B) were isolated along with five known flavonoids. Their structures were established by various analyses including 2D-NMR spectroscopy.

摘要

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