申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20210355153A1
公开(公告)日:2021-11-18
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。