申请人:UCB Pharmaceuticals, Inc.
公开号:US04525358A1
公开(公告)日:1985-06-25
New 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acids, their amides and their salts, processes for the preparation thereof and therapeutic compositions. These compounds have the formula ##STR1## wherein Y=--OH or --NH.sub.2 ; X and X'=H, halogen, alkoxy or trifluoromethyl; m=1 or 2 and n=1 or 2. The amides of the 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acids are prepared either by reacting a 1-(diphenylmethyl)-piperazine with an omegahaloacetamide, or by reacting an alkali metal salt of an omega-[4-(diphenylmethyl)-1-piperazinyl]-alkanol with a 2-haloacetamide, or yet by reacting ammonia with a halide or alkyl ester of a 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acid, whereas the 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acids are prepared by hydrolyzing the corresponding amide or lower alkyl ester. These compounds have in particular an antiallergic, spasmolytic and antihistaminic activity.
新的2-[4-(二苯甲基)-1-哌嗪基]-乙酸,它们的酰胺和盐,其制备过程及治疗组合物。这些化合物的化学式为##STR1## 其中Y=--OH或--NH.sub.2; X和X'=H,卤素,烷氧基或三氟甲基; m=1或2,n=1或2。2-[4-(二苯甲基)-1-哌嗪基]-乙酸的酰胺可以通过将1-(二苯甲基)-哌嗪与ω-卤代乙酰胺反应,或通过将ω-[4-(二苯甲基)-1-哌嗪基]-烷醇的碱金属盐与2-卤代乙酰胺反应,或通过将氨与2-[4-(二苯甲基)-1-哌嗪基]-乙酸的卤化物或烷基酯反应来制备,而2-[4-(二苯甲基)-1-哌嗪基]-乙酸则是通过水解相应的酰胺或较低烷基酯制备的。这些化合物特别具有抗过敏,平滑肌松弛和抗组胺活性。