Synthesis of heparin fragments. A chemical synthesis of the pentasaccharide O-(2-deoxy-2-sulfamido-6-O-sulfo-α-d-glucopyranosyl)-(1→4)-O-(β-d-glucopyranosyluronic acid)-(1→4)-O-(2-deoxy-2-sulfamido-3,6-di-O-sulfo-α-d-glucopyranosyl)-(1→4)-O-(2-O-sulfo-α-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:Maurice Petitou、Philippe Duchaussoy、Isidore Lederman、Jean Choay、Pierre Sinaÿ、Jean-Claude Jacquinet、Giangiacomo Torri
DOI:10.1016/s0008-6215(00)90633-5
日期:1986.3
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-gl
首先将已知的烯丙基4,6-O-亚苄基-α-D-吡喃葡萄糖苷转化为甲基(丙-1-烯基2,3-二-O-苄基-4-O-氯乙酰基-α-D-吡喃葡萄糖苷)-尿酸酯。酸水解,然后用(溴代亚甲基)二甲基铵处理,得到(2,3-二-O-苄基-4-O-氯乙酰基-α-D-吡喃葡萄糖基溴)甲基丙烯酸。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的缩合-葡萄糖吡喃葡萄糖醛酸酯)-bet aD-吡喃葡萄糖。醋解,然后用四溴化钛处理,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-吡喃葡萄糖基尿酸酯)-alp ha-D-吡喃葡萄糖基溴化物 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-缩合氨基吡