Molecular structure of fagopyritol Al (O-α-D-galactopyranosyl-(1→3)-D-chiro-inositol) by NMR

被引：33

作者：

Obendorf, RL ^{[1
]}

Steadman, KJ

Fuller, DJ

Horbowicz, M

Lewis, BA

机构：

[1] Cornell Univ, Dept Crop & Soil Sci, Ithaca, NY 14853 USA

[2] Cornell Univ, Dept Chem & Chem Bio, NMR Facil, Ithaca, NY 14853 USA

[3] Cornell Univ, Agr Expt Stn, Div Nutr Sci, Ithaca, NY 14853 USA

[4] Res Inst Vegetables Crops, PL-96100 Skierniewice, Poland

来源：

CARBOHYDRATE RESEARCH | 2000年 / 328卷 / 04期

关键词：

Fagopyrum esculentum; buckwheat; seed; fagopyritol A1; fagopyritol B1; D-chiro-inositol; galactosyl cyclitol;

D O I：

10.1016/S0008-6215(00)00133-6

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：

The molecular structure of fagopyritol A1, a novel galactopyranosyl cyclitol from buckwheat seeds, was determined to be O-alpha-D-galactopyranosyl-(1-->2)-D-chiro-inositol by H-1 and C-13 NMR. Fagopyritol Al is a positional isomer of fagopyritol B1 (O-alpha-D-galactopyranosyl-(1-->2)-D-chiro-inositol), representing a different series of fagopyritol oligomers. Trimethylsilyl derivatives of both compounds have similar mass spectra, but each may be identified by different abundance ratios of fragments with m/z 305/318 and 318/319. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：623 / 627

页数：5

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