NEW N-((2-OXO-1-PYRROLIDINYL)ACETYL)PIPERAZINES, THE METHODS OF PRODUCING SUCH NEW COMPOUNDS AND THEIR SALTS AS WELL AS PHARMACEUTICAL PREPARATIONS FOR THERAPEUTIC USE CONTAINING THESE COMPOUNDS OR SALTS

摘要

The present invention concerns new N-[(2-oxo-1-pyrrolidinyl)acetyl] piperazines of the following formula: wherein R represents hydrogen or an alkyl group which contains 1 to 3 carbon atoms which can be arranged as straight or branched chain and R min represents an allyl, cinnamyl or p-methoxybenzyl group, as well as their pharmaceutically acceptable acid addition salts. These piperazine derivatives are useful as drugs, especially in the treatment of cerebrovascular disturbances in the elderly.