Preparation of 8-methoxycarbonyloctyl glycosides of α-d-mannopyranose, 2-O-α-mannopyranosyl-α-d-mannopyranose, β-d-galactofuranose, and 3-O-β-d-galactofuranosyl-α-d-mannopyranose
作者:David S. Tsui、Philip A.J. Gorin
DOI:10.1016/s0008-6215(00)90094-6
日期:1986.11
with the general structure mono-(or di-)saccharide-lipid spacer-protein having possible antigenic and immunogenic activity in respect to infection with Trypanosoma cruzi. Tri-O-acetyl-1,2-O-(1-methoxyethylidene) derivatives of D-mannopyranose and D-galactofuranose were treated with alcohols in the presence and absence of mercuric bromide to give orthoesters which rearranged into glycosides.
制备了α-D-甘露吡喃糖,2-O-α-甘露吡喃糖基-α-D-甘露吡喃糖,β-D-半乳糖呋喃糖和3-O-β-D-半乳糖呋喃糖基α-D-甘露吡喃糖的8-甲氧羰基辛基糖苷。作为合成具有一般结构的复合物的中间体,单(或二)糖-脂质间隔蛋白对克鲁斯锥虫的感染具有可能的抗原和免疫原活性。在存在和不存在溴化汞的情况下,用醇处理D-甘露吡喃糖和D-半乳糖呋喃糖的三-O-乙酰基-1,2-O-(1-甲氧基亚乙基)衍生物,得到原酸酯,其重新排列成糖苷。