申请人:Sterling Drug Inc.
公开号:US04182895A1
公开(公告)日:1980-01-08
1-Amino-lower-alkyl-3,4-diphenyl-1H-pyrazoles, useful as anti-depressants and analgesics, are prepared by reduction with an alkali metal aluminum hydride of an .omega.[1-(3,4-diphenyl-1H-pyrazolyl)]-lower alkanamide; reduction with hydrogen in the presence of ammonia, methylamine, dimethylamine or diethylamine over a catalyst of a 1-(cyano-lower-alkyl)-3,4-diphenyl-1-H-pyrazole; reaction of a 1-(tosyloxy-lower-alkyl)-3,4-diphenyl-1H-pyrazole with a lower-alkylamine; reaction of 3,4-diphenylpyrazole with a halo-lower-alkylamine in the presence of an acid acceptor; or reductive alkylation with formaldehyde of a 1-(3-aminopropyl)-3,4-diphenyl-1H-pyrazole.
1-氨基-低碳基-3,4-二苯基-1H-吡唑烷,可用作抗抑郁剂和镇痛剂,通过以下方法制备:将一种.omega.[1-(3,4-二苯基-1H-吡唑基)]-低碳酰胺与碱金属铝氢化物还原;在氨、甲基胺、二甲胺或二乙胺存在下,在1-(氰基-低碳基)-3,4-二苯基-1H-吡唑烷的催化剂作用下氢化还原;将1-(对甲苯磺酰氧基-低碳基)-3,4-二苯基-1H-吡唑烷与低碳基胺反应;在酸受体存在下,将3,4-二苯基吡唑与卤代低碳基胺反应;或将1-(3-氨丙基)-3,4-二苯基-1H-吡唑烷与甲醛还原烷基化。