Oxygenated pyrenes, their potential biosynthetic precursor and benzylated dihydroflavones from two African Uvaria species

被引：22

作者：

Achenbach, H ^{[1
]}

Hohn, M ^{[1
]}

Waibel, R ^{[1
]}

Nkunya, MHH ^{[1
]}

Jonker, SA ^{[1
]}

Muhie, S ^{[1
]}

机构：

[1] UNIV DAR ES SALAAM, DEPT CHEM, DAR ES SALAAM, TANZANIA

来源：

PHYTOCHEMISTRY | 1997年 / 44卷 / 02期

关键词：

Uvaria doeringii; U-lucida spp lucida; Annonaceae; 2,7-dihydroxy-1,8-dimethoxypyrene; 2-hydroxy-1,7,8-trimethoxypyrene; 1,2-dihydro-2,9-dihydroxy-10-methoxyfuro[2,3-a]phenanthrene; chamanetin; isochamanetin; dichamanetin; uvarinol; isouvarinol;

D O I：

10.1016/S0031-9422(96)00448-7

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Two new oxygenated pyrenes, 2,7-dihydroxy-1,8-dimethoxypyrene and 2-hydroxy-1,7,8-trimethoxypyrene, have been isolated, from the stem bark of Tanzanian Uvaria lucida spp. lucida, along with the benzylated dihydroflavones chamanetin, isochamanetin, dichamanetin, uvarinol and isouvarinol, and the carotenoid lutein. 2,7-Dihydroxy-1,8-dimethoxypyrene was also isolated from Ghanaian U. doeringii, together with a potential biogenetic precursor of the pyrenes, 1,2-dihydro-2,9-dihydroxy-10-methoxy-furo[2,3-a]phenanthrene, and most of the benzylated flavanones, which were found in U. lucida spp. lucida. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：359 / 364

页数：6

共 26 条

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