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肝素片段的合成。五糖O-(2-脱氧-2-磺酰胺基-6-O-磺基-α-D-吡喃葡萄糖基)-(1→4)-O-(β-D-吡喃葡萄糖醛酸)-(1→4)-O-(2-脱氧-2-磺酰胺基-3,6-二-O-磺基-α-D-吡喃葡萄糖基)-(1→4)-O-(2-O-磺基-α-L-吡喃艾杜糖醛酸)-(1→4)-2-脱氧-2-磺酰胺基-6-O-磺基-D-吡喃葡萄糖十钠盐的化学合成,一种对抗凝血酶III具有高亲和力的肝素片段。

Synthesis of heparin fragments. A chemical synthesis of the pentasaccharide O-(2-deoxy-2-sulfamido-6-O-sulfo-alpha-D-glucopyranosyl)-(1-4 )-O-(beta-D-glucopyranosyluronic acid)-(1-4)-O-(2-deoxy-2-sulfamido-3,6-di-O-sulfo-alpha-D-glu copyranosyl)-(1-4)-O-(2-O-sulfo-alpha-L-idopyranosyluronic acid)-(1-4)-2-deoxy-2-sulfamido-6-O-sulfo-D-glucopyranose decasodium salt, a heparin fragment having high affinity for antithrombin III.

作者信息

Petitou M, Duchaussoy P, Lederman I, Choay J, Sinaÿ P, Jacquinet J C, Torri G

出版信息

Carbohydr Res. 1986 Mar 15;147(2):221-36. doi: 10.1016/s0008-6215(00)90633-5.

DOI:10.1016/s0008-6215(00)90633-5
PMID:3708627
Abstract

Known allyl 4,6-O-benzylidene-alpha-D-glucopyranoside was first converted into methyl (prop-1-enyl 2,3-di-O-benzyl-4-O-chloroacetyl-alpha-D-glucopyranosid)-uronate. Acid hydrolysis, followed by treatment with (bromomethylene)dimethyl-ammonium bromide, gave methyl (2,3-di-O-benzyl-4-O-chloroacetyl-alpha-D-glucopyranosyl bromide)uronate. Condensation of this bromide with 3-O-acetyl-1,6-anhydro-2-azido-2-deoxy-4-O-(methyl 2,3-di-O-benzyl-4-O-chloroacetyl-beta-D-glucopyranosyluronate)-bet a-D-glucopyranose. Acetolysis, followed by treatment with titanium tetrabromide, then gave 3,6-di-O-acetyl-2-azido-2-deoxy-4-O-(methyl 2,3-di-O-benzyl-4-O-chloroacetyl-beta-D-glucopyranosyluronate)-alp ha-D-glucopyranosyl bromide. Condensation of this bromide with benzyl 6-O-acetyl-3-O-benzyl-2-benzyloxy- carbonylamino-2-deoxy-4-O-(methyl 2-O-acetyl-3-O-benzyl-alpha-L- idopyranosyluronate)-alpha-D-glucopyranoside provided benzyl O-(methyl 2,3-di-O-benzyl-4-O-chloroacetyl-beta-D-glucopyranosyluronate)-(1- ---4)-O-(3,6-di-O-acetyl- -2-azido-2-deoxy-alpha-D-glucopyranosyl)-(1----4)-O-(methyl 2-O-acetyl-3-O-benzyl-alpha-L-idopyranosyluronate)-(1----4)-6-O-ac etyl-3-O- acetyl-3-O-benzyl-2-benzyloxycarbonylamino-2-deoxy-alpha-D-gluc opyranoside. O-Dechloroacetylation followed by condensation with 6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-alpha-D-glucopyranosyl bromide provided benzyl O-(6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-beta-D-glucopyranosyl)- (1----4)-O-(methyl 2,3-di-O-benzyl-beta-D-glucopyranosyluronate)-(1----4)- O-(3,6-di-O-acetyl-2-azido-2-deoxy-alpha-D-glucopyranosyl)-(1----4)-O-(m ethyl 2-O-acetyl-3-O-benzyl-alpha-L-idopyranosyluronate)-(1----4)-6-O-ac etyl-3-O- benzyl-2-benzyloxycarbonylamino-2-deoxy-alpha-D-glucopyranoside in 70% yield. O-Deacetylation followed by re-esterification, O-sulfation, saponification, catalytic hydrogenolysis, and N-sulfation gave the decasodium salt of O-(2-deoxy-2-sulfamido-6-O-sulfo-alpha-D- glucopyranosyl)-(1----4)-O-(beta-D-glucopyranosyluronic acid)-(1----4)-O-(2-deoxy-2-sulfamido-3,6-di-O-sulfo-alpha-D-gl ucopyranosyl)-(1----4)-O-(2-O-sulfo-alpha-L-idopyranosyluronic+ ++ acid)-(1----4)-2-deoxy-2-sulfamido-6-O-sulfo-D-glucopyranose. This synthetic pentasaccharide binds to antithrombin III with an association constant similar to that of high-affinity heparin and elicits a potent anti-factor Xa activity in plasma.

摘要

已知烯丙基4,6 - O - 亚苄基 - α - D - 吡喃葡萄糖苷首先被转化为甲基(1 - 丙烯基2,3 - 二 - O - 苄基 - 4 - O - 氯乙酰基 - α - D - 吡喃葡萄糖苷) - 糖醛酸酯。酸水解,接着用(溴亚甲基)二甲基溴化铵处理,得到甲基(2,3 - 二 - O - 苄基 - 4 - O - 氯乙酰基 - α - D - 吡喃葡萄糖基溴) - 糖醛酸酯。该溴化物与3 - O - 乙酰基 - 1,6 - 脱水 - 2 - 叠氮基 - 2 - 脱氧 - 4 - O - (甲基2,3 - 二 - O - 苄基 - 4 - O - 氯乙酰基 - β - D - 吡喃葡萄糖糖醛酸酯) - β - D - 吡喃葡萄糖缩合。乙酰解,接着用四溴化钛处理,然后得到3,6 - 二 - O - 乙酰基 - 2 - 叠氮基 - 2 - 脱氧 - 4 - O - (甲基2,3 - 二 - O - 苄基 - 4 - O - 氯乙酰基 - β - D - 吡喃葡萄糖糖醛酸酯) - α - D - 吡喃葡萄糖基溴。该溴化物与苄基6 - O - 乙酰基 - 3 - O - 苄基 - 2 - 苄氧基羰基氨基 - 2 - 脱氧 - 4 - O - (甲基2 - O - 乙酰基 - 3 - O - 苄基 - α - L - 艾杜吡喃糖醛酸酯) - α - D - 吡喃葡萄糖苷缩合,得到苄基O - (甲基2,3 - 二 - O - 苄基 - 4 - O - 氯乙酰基 - β - D - 吡喃葡萄糖糖醛酸酯) - (1→4) - O - (3,6 - 二 - O - 乙酰基 - 2 - 叠氮基 - 2 - 脱氧 - α - D - 吡喃葡萄糖基) - (1→4) - O - (甲基2 - O - 乙酰基 - 3 - O - 苄基 - α - L - 艾杜吡喃糖醛酸酯) - (1→4) - 6 - O - 乙酰基 - 3 - O - 苄基 - 2 - 苄氧基羰基氨基 - 2 - 脱氧 - α - D - 吡喃葡萄糖苷。O - 脱氯乙酰化,接着与6 - O - 乙酰基 - 2 - 叠氮基 - 3,4 - 二 - O - 苄基 - 2 - 脱氧 - α - D - 吡喃葡萄糖基溴缩合,以70%的产率得到苄基O - (6 - O - 乙酰基 - 2 - 叠氮基 - 3,4 - 二 - O - 苄基 - 2 - 脱氧 - β - D - 吡喃葡萄糖基) - (1→4) - O - (甲基2,3 - 二 - O - 苄基 - β - D - 吡喃葡萄糖糖醛酸酯) - (1→4) - O - (3,6 - 二 - O - 乙酰基 - 2 - 叠氮基 - 2 - 脱氧 - α - D - 吡喃葡萄糖基) - (1→4) - O - (甲基2 - O - 乙酰基 - 3 - O - 苄基 - α - L - 艾杜吡喃糖醛酸酯) - (1→4) - 6 - O - 乙酰基 - 3 - O - 苄基 - 2 - 苄氧基羰基氨基 - 2 - 脱氧 - α - D - 吡喃葡萄糖苷。O - 脱乙酰化,接着重新酯化、O - 硫酸化、皂化、催化氢解和N - 硫酸化,得到O - (2 - 脱氧 - 2 - 氨磺酰基 - 6 - O - 磺基 - α - D - 吡喃葡萄糖基) - (1→4) - O - (β - D - 吡喃葡萄糖醛酸) - (1→4) - O - (2 - 脱氧 - 2 - 氨磺酰基 - 3,6 - 二 - O - 磺基 - α - D - 吡喃葡萄糖基) - (1→4) - O - (2 - O - 磺基 - α - L - 艾杜吡喃糖醛酸) - (1→4) - 2 - 脱氧 - 2 - 氨磺酰基 - 6 - O - 磺基 - D - 吡喃葡萄糖的十钠盐。这种合成的五糖以与高亲和力肝素相似的缔合常数与抗凝血酶III结合,并在血浆中引发强大的抗因子Xa活性。

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Synthesis of heparin fragments. A chemical synthesis of the pentasaccharide O-(2-deoxy-2-sulfamido-6-O-sulfo-alpha-D-glucopyranosyl)-(1-4 )-O-(beta-D-glucopyranosyluronic acid)-(1-4)-O-(2-deoxy-2-sulfamido-3,6-di-O-sulfo-alpha-D-glu copyranosyl)-(1-4)-O-(2-O-sulfo-alpha-L-idopyranosyluronic acid)-(1-4)-2-deoxy-2-sulfamido-6-O-sulfo-D-glucopyranose decasodium salt, a heparin fragment having high affinity for antithrombin III.肝素片段的合成。五糖O-(2-脱氧-2-磺酰胺基-6-O-磺基-α-D-吡喃葡萄糖基)-(1→4)-O-(β-D-吡喃葡萄糖醛酸)-(1→4)-O-(2-脱氧-2-磺酰胺基-3,6-二-O-磺基-α-D-吡喃葡萄糖基)-(1→4)-O-(2-O-磺基-α-L-吡喃艾杜糖醛酸)-(1→4)-2-脱氧-2-磺酰胺基-6-O-磺基-D-吡喃葡萄糖十钠盐的化学合成,一种对抗凝血酶III具有高亲和力的肝素片段。
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