Pigments of fungi.: LII -: Anisochiral flavomannin 6,6′,8-tri-O-methyl ether from an Australian Dermocybe toadstool

被引：8

作者：

Buchanan, MS ^{[1
]}

Gill, M ^{[1
]}

Gimenez, A ^{[1
]}

Palfreyman, AR ^{[1
]}

Phonh-Axa, S ^{[1
]}

Raudies, E ^{[1
]}

Yu, J ^{[1
]}

机构：

[1] Univ Melbourne, Sch Chem, Parkville, Vic 3052, Australia

来源：

AUSTRALIAN JOURNAL OF CHEMISTRY | 1999年 / 52卷 / 08期

关键词：

D O I：

10.1071/CH98172

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

Flavomannin 6,6',8-tri-O-methyl ether occurs in the fruiting bodies of the Australian toadstool Dermocybe sp. WAT 24274 as an anisochiral mixture of the (3S,3'S,P)- and (3R,3'R,M)-enantiomers (5) and (7), respectively, in which the former predominates to the extent of 50% e.e. The structure of the natural product is determined by spectroscopic methods and the absolute configuration and enantiomeric purity are deduced from the c.d. spectrum and by chemical degradation of the natural product to a mixture of stereoisomeric dihydroanthracenones that has been analysed by chiral h.p.l.c.

引用

页码：749 / 753

页数：5

共 14 条

[1]

Pigments of fungi.: Part 51.: Structure and stereochemistry of coupled pre-anthraquinones of the pseudophlegmacin type from Australian toadstools belonging to the genus Dermocybe [J].