Four new flavan-4-ol glycosides from Pneumatopteris pennigera

被引：10
|
作者：
Tanaka, N [1 ]
Ushioda, T [1 ]
Fuchino, H [1 ]
Braggins, JE [1 ]
机构：
[1] UNIV AUCKLAND,DEPT BOT,AUCKLAND,NEW ZEALAND
来源：
AUSTRALIAN JOURNAL OF CHEMISTRY | 1997年 / 50卷 / 04期
关键词：
D O I：
10.1071/C96108
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
From the fronds of Pneumatopteris pennigera, four new flavan-4-ol glycosides, named pneumatopterins A, B, C and D, were isolated. Their structures were determined as (2S,4R)-5,7-di-beta-D-glucopyranosyloxy-6-hydroxymethyl-8-methylflavan-4-ol, (2S,4R)-5,7-di-beta-D-glucopyranosyloxy-6,8-dimethylflavan-4-ol, (2S,4R)-5-beta-D-glucopyranosyloxy-7-hydroxy-6-hydroxymethyl-8-methyl-4,2 ''-oxo-flavan and (2S,4R)-5-beta-D-glucopyranosyloxy-7-hydroxy-6,8-dimethyl-4,2 ''-oxo-flavan, respectively, on the basis of spectroscopic data and chemical correlations.
引用
收藏
页码：329 / 332
页数：4
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