[EN] METHOD FOR THE PRODUCTION OF 2-CHLORO-2'-DEOXYADENOSINE (CLADRIBINE) AND ITS 3,5-DI-O-p-TOLUOYL DERIVATIVE<br/>[FR] PROCEDE DE PRODUCTION DE 2-CHLORO-2'-DESOXYADENOSINE (CLADRIBINE) ET SON DERIVE 3,5-DI-O-P-TOLUOYLE
申请人:STERRENBELD BIOTECHNOLOGIE NORTH AMERICA INC
公开号:WO2000064918A1
公开(公告)日:2000-11-02
A process for the production of cladribine, 2-chloro-2'-deoxyadenosine, is provided which involves the direct glycosylation of 2-chloro-6-aminopurine with 1-chloro-2-deoxy-3,5-di-O-p-toluoyl-α-D-erythropentofuranose. The process is carried out by first forming the sodium salt of 2-chloro-6-aminopurine and allowing the sodium salt to react with 1-chloro-2-deoxy-3,5-di-O-p-toluoyl-α-D-erythropentofuranose in the presence of a moderately polar solvent such as acetone. The final product, cladribine, is produced by removal of the p-toluoyl groups by the action of methanolic ammonia or methanolic sodium methoxide.
提供一种生产克拉德利宾(2-氯-2'-脱氧腺苷)的方法,其中包括将2-氯-6-氨基嘌呤直接与1-氯-2-脱氧-3,5-二-O-对甲苯磺酰-α-D-赤藓糖苷化。该过程首先通过形成2-氯-6-氨基嘌呤的钠盐,并在中等极性溶剂(如丙酮)的存在下使钠盐与1-氯-2-脱氧-3,5-二-O-对甲苯磺酰-α-D-赤藓糖反应。最终产物克拉德利宾是通过甲醇氨或甲醇甲氧基钠的作用去除对甲苯磺酰基而得到的。