Practical synthesis of a tetrasaccharide derivative corresponding to ristomycin A and ristocetin A
作者:Meimei Zhang、Yuguo Du、Fanzuo Kong
DOI:10.1016/s0008-6215(00)00303-7
日期:2001.2
benzoyl-α- l -rhamnopyranosyl trichloroacetimidate, 2- O -acetyl-3,4,6-tri- O -benzoyl-α- d -mannopyranosyl trichloroacetimidate, and 2,3,5-tri- O -benzoyl-α- d -arabinofuranosyl trichloroacetimidate. A one-pot preparation of allyl 3,4-di- O -benzoyl-2- O - tert -butyldimethylsilyl-6- O -triphenylmethyl-α- d -glucopyranoside is described, and regioselective glycosylation is carried out using perbenzoylated
摘要通过顺序组装结构单元烯丙基3,4-di-O-,实现了完全苯甲酰化四糖的实用合成,其游离形式对于抗生素克里斯托霉素A而言是二聚化和与细胞壁结合的必不可少的。苯甲酰基-α-d-吡喃葡糖苷,2,3,4-三-O-苯甲酰基-α-1-rhamnopyranosyl三氯乙酰亚氨酸酯,2-O-乙酰基-3,4,6-三-O-苯甲酰基-α-d-甘露吡喃糖基三氯乙酰亚胺酸酯和2,3,5-三-O-苯甲酰基-α-d-呋喃糖基三氯乙酰亚胺酸酯。描述了一种一锅制备的烯丙基3,4-二-O-苯甲酰基-2-O-叔丁基二甲基甲硅烷基-6-O-三苯甲基-α-d-吡喃葡萄糖苷,