The synthesis of O-β-d-mannopyranosyl-(1→4)-O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1→4)-2-acetamido-2-deoxy-D-glucopyranose. Part I
作者:Christopher D. Warren、Claudine Augé、Murray L. Laver、Shigeo Suzuki、Diane Power、Roger W. Jeanloz
DOI:10.1016/s0008-6215(00)85521-4
日期:1980.6
allyl O-(2-O-acetyl-3,4,6-tri-O-benzyl-β- D -glucopyranosyl)-(1→4)-O-(2-acetamido-3,6-di-O-benzyl-2-deoxy-β- D -glucopyranosyl)-(1→4)-2-acetamido-3,6-di-O-(2-butenyl)-2-deoxy-β- D -glucopyranoside. O-Deacetylation, oxidation with acetic anhydride-dimethyl sulfoxide, and stereoselective reduction with sodium borohydride gave mainly allyl O-(3,4,6-tri-O-benzyl-β- D -mannopyranosyl)-(1→4)-O-(2-acetamido-3
摘要制备了2-乙酰氨基-3,6-二-O-(2-丁烯基)-2-脱氧-β-D-吡喃葡萄糖苷烯丙基,并与2-甲基-(4-O-乙酰基-3,6-二-O-苄基-1,2-二脱氧-α-D-吡喃葡萄糖)-[2,1-d] -2-恶唑啉。所得的受保护的二糖烯丙基2-乙酰氨基-4-O-(2-乙酰氨基-4-O-乙酰基-3,6-二-O-苄基-2-脱氧-β-D-吡喃葡萄糖基)-3,6-将二-O-(2-丁烯基)-2-脱氧-β-D-吡喃葡萄糖苷进行O-脱乙酰化,并将产物与2-O-乙酰基-3,4,6-tri-O-苄基-α-D-偶联。在三氟甲磺酸银和1,1,3,3-四甲基脲的存在下,将吡喃葡萄糖基溴化,得到三糖烯丙基O-(2-O-乙酰基-3,4,6-tri-O-苄基-β-D-吡喃葡萄糖基)-(1→4)-O-(2-乙酰氨基-3,6-二-O-苄基-2-脱氧-β-D-吡喃葡萄糖基)-(1→4)-2-乙酰氨基-3,6 -二-O-(2-