abstract |
Piperazine derivatives corresponding to formula (I) in which R is a hydrogen atom or a straight or branched (Cāāā) alkoxycarbonyl radical, A is a 7-methoxy-naphthalenyl-1 radical, a 6-methoxy, 2,3-dihydro-1 H -indenyl-1 radical, or a 7-methoxy-1,2,3,4-naphthalenyl-1 radical. |