Synthesis of Ganglioside GM3 and GM4 Analogs Having Mimics of Ceramide Moieties and Their Binding Activities with Influenza Virus A.
作者:Yoshihiro NAGAO、Takahiro NEKADO、Kiyoshi IKEDA、Kazuo ACHIWA
DOI:10.1248/cpb.43.1536
日期:——
5-dideoxy-2-thio-beta-D- galacto-2-nonulopyranosid)onate (10) as the sialosyl donor with suitably protected galactose and lactose acceptors catalyzed by N-bromosuccinimide (NBS), iodine, and tetrabutylammonium trifluoromethanesulfonate (TBAOTf) as the glycosyl promoter in acetonitrile under kinetically controlled conditions. Compound 2 exhibited binding activity towards influenza virus A.
合成了神经节苷脂GM4(1)和GM3(2)类似物,其中包含神经节苷脂的神经酰胺部分的模拟物。1和2的合成具有甲基(苯基5-乙酰氨基-4,7,8,9-四-O-乙酰基-3,5-二脱氧-2-硫代-β-D-半乳糖-2-壬基吡喃二糖基)的立体选择性糖基化酸)(10)作为唾液酸供体,在动力学控制的条件下,在乙腈中由N-溴代琥珀酰亚胺(NBS),碘和三氟甲磺酸四丁基铵(TBAOTf)催化得到适当保护的半乳糖和乳糖受体。化合物2表现出对流感病毒A的结合活性。