83881-59-8Relevant articles and documents
2-[4-(Diphenylmethyl)-1-piperazinyl]-acetic acids and their amides
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, (2008/06/13)
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 --NH2 ; 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.