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2-脱氧-2,3-O-异丙叉基-2,4-二-C-甲基-β-L-阿拉伯糖

2-De-oxy-2,3-O-isopropyl-idene-2,4-di-C-methyl-β-l-arabinose.

作者信息

Booth K Victoria, Jenkinson Sarah F, Fleet George W J, Watkin David J

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2009 Feb 21;65(Pt 3):o570. doi: 10.1107/S1600536809005777.

DOI:10.1107/S1600536809005777
PMID:21582225
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2968580/
Abstract

X-ray crystallography unequivocally confirmed the stereochemistry of the C atom at position 2 in the carbon scaffold of the title mol-ecule, C(10)H(18)O(4). The pyran-ose ring exists in a chair conformation with the methyl group on the C atom in the 2 position in an equatorial configuration. The absolute stereochemistry was determined from the starting material. The crystal structure consists of O-H⋯O hydrogen-bonded chains of mol-ecules running parallel to the b axis.

摘要

X射线晶体学明确证实了标题分子C(10)H(18)O(4)碳骨架中2位碳原子的立体化学结构。吡喃糖环呈椅式构象，2位碳原子上的甲基处于平伏构型。绝对立体化学结构由起始原料确定。晶体结构由平行于b轴的分子间O-H⋯O氢键链组成。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/065b/2968580/9412b50475cf/e-65-0o570-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/065b/2968580/3908e843d016/e-65-0o570-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/065b/2968580/8047e3d3ad87/e-65-0o570-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/065b/2968580/9412b50475cf/e-65-0o570-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/065b/2968580/3908e843d016/e-65-0o570-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/065b/2968580/8047e3d3ad87/e-65-0o570-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/065b/2968580/9412b50475cf/e-65-0o570-fig3.jpg

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本文引用的文献

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Fucose: biosynthesis and biological function in mammals.岩藻糖：哺乳动物中的生物合成与生物学功能
Glycobiology. 2003 Jul;13(7):41R-53R. doi: 10.1093/glycob/cwg054. Epub 2003 Mar 19.