| abstract |
The derivatives of acyl-piperazinil-pyrimidins having a general formula (1), wherein X is O or S, R1 is alcoxy or trifluorometyl, R2 is alkyl, cycloalkyl, heterocycloalkyl, aryl, arylalkyl, heteroaryl or heteroarylalkyl are useful for the treatment of the central nervous system. The compounds (1) wherein X is O are obtained by reaction of a derivative of pirimidin with a derivative of piperazine or by reaction of a derivative of piperazine-pyrimidin with a carboxylic acid or a salt or derivative thereof. The compounds (1) wherein X is S can be obtain by reaction of (1) wherein X is O with the Lawesson reactive or with phosphores pentalsulfide. The compounds (1) have a sedative, anticonvulsive, hypnotic or general anesthesic activity and can be used in human and/or animal medicine. |