A process for preparing a glycoside compound represented by formula (3), which includes reacting a glycoside compound represented by formula (1) with an ether compound represented. by formula (2) in the presence of an. oxidizing agent and an acid to prepare a glycoside compound represented by formula (3),
where the oxidizing agent is added to a reaction system, followed by adding an acid thereto,
where B
a
represents a cytosine group which may be optionally substituted with acyl group, or an uracil group, R
1
represents a C1 to C6 alkyl group or a phenyl group, and n is 0 or 1, where an oxidizing agent is selected from N-halogenated succinimide and N-halogenated hydantoin, and an acid is selected from perfluoroalkylcarboxylic acid, alkylsulfonic acid, arylsulfonic acid, periluoroalkylsulfonic acid, and salts thereof, and any combinations thereof, which can provide a synthesis of a desired compound with high purity.
一种制备由式(3)表示的糖苷化合物的方法,包括在氧化剂和酸的存在下,将由式(1)表示的糖苷化合物与由式(2)表示的醚化合物反应,以制备由式(3)表示的糖苷化合物,其中将氧化剂加入到反应体系中,然后加入酸,其中B代表可能选择性地用酰基或尿
嘧啶基替代的
胞嘧啶基,R1代表C1至C6烷基或苯基,n为0或1,其中氧化剂选自N-卤代琥珀
酰亚胺和N-卤代海达
噻嗪,酸选自
全氟烷基
羧酸、烷基
磺酸、芳基
磺酸、
全氟烷基
磺酸及其盐,以及任何这些的组合,可提供高纯度的所需化合物的合成。