α-(1 → 2)-, α-(1 → 3)-, and α-(1 → 6)-Linked thioglycosidic disaccharides: syntheses and anti-HIV testing of thiokojibiose octaacetate, thionigerose, and thioisomaltose
作者:Robert N. Comber、Joyce D. Friedrich、David A. Dunshee、Sandra L. Petty、John A. Secrist
DOI:10.1016/0008-6215(94)84182-9
日期:1994.9
3-O-trifluoromethylsulfonyl-alpha-D-++ +allofuranose (15), or methyl 2,3,4-tri-O-acetyl-6-deoxy-6-iodo-alpha-D-glucopyranoside (17), respectively. Thiokojibiose octaacetate in turn was converted to 3,4,6-tri-O-acetyl-2-S-(2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl)-2 -thio-alpha-D-glucopyranosyl bromide (9), which was used to obtain several related disaccharides and one trisaccharide. All of the
描述了几种α-连接的硫糖苷二糖的合成,包括巯基二糖八乙酸酯(1),硫代黑糖(2)和硫代异麦芽糖(3)。通过将2,3,4,6-四-O-乙酰基-1.5-乙酰基-1-硫代-α-D-吡喃葡萄糖(4)与1,3,4,6-四-O偶合来合成标题化合物-乙酰基-2-O-三氟甲基磺酰基-β-D-甘露糖吡喃糖(7),1,2:5,6-二-O-异亚丙基-3-O-三氟甲基磺酰基-α-D-++ +铝呋喃糖(15 )或甲基2,3,4-三-O-乙酰基-6-脱氧-6-碘-α-D-吡喃葡萄糖苷(17)。硫代oji二糖八乙酸酯依次转化为3,4,6-三-O-乙酰基-2-S-(2,3,4,6-四-O-乙酰基-α-D-吡喃葡萄糖基)-2-硫代-α -D-吡喃葡萄糖基溴化物(9),用于获得几种相关的二糖和一种三糖。所有化合物,包括硫代麦芽糖和硫代海藻糖,通过已知方法重新合成的它们在CEM或MT-2细胞中测试其抗HIV活性。仅使用硫代曲霉