UN PROCEDIMIENTO PARA LA PRODUCCION DE DERIVADOS DE 11-PIPERAZINIL-5H--PIRROLO 1,2-B, 1,2,5 BENZOTRIAZEPINA.

摘要

Compound of formula I, …… wherein… R1 and R4 are each hydrogen, halogen, alkyl, alkoxy, alkylthio or trifluoromethyl,… R2 is hydrogen, alkyl, hydroxyalkyl or a physiologically acceptable hydrolyzable ester thereof, and… R3 is hydrogen, alkyl, alkenyl or benzyl or an acid addition salt thereof, are useful as neuroleptics, anti-depressants or soporifics.