[EN] METHOD FOR PREPARING RISPERIDONE<br/>[FR] PROCEDE DE PREPARATION DE LA RISPERIDONE
申请人:HANMI PHARM IND CO LTD
公开号:WO2004035573A1
公开(公告)日:2004-04-29
Risperidone is prepared in a high yield by reacting 2,4-difluorophenyl(4-piperidinyl)methanone oxime hydrochloride and 3-(2-chloroethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one in an aqueous alkali hydroxide solution having an alkali hydroxide concentration in the range of 20 to 40%.
利培酮是通过在含有20%至40%氢氧化碱浓度的水性碱性氢氧化物溶液中,将2,4-二氟苯基(4-哌啶基)甲酮肟盐酸盐和3-(2-氯乙基)-6,7,8,9-四氢-2-甲基-4H-吡啶并[1,2-a]嘧啶-4-酮反应而高产率制备的。