Pyrimidinylpiperazine


1-piperazine is a chemical compound and piperazine derivative. It is known to act as an antagonist of the α2-adrenergic receptor and, to a much lesser extent, as a partial agonist of the 5-HT1A receptor. It has negligible affinity for the dopamine D2, D3, and D4 receptors and does not appear to have significant affinity for the α1-adrenergic receptors.

Derivatives

A number of pyrimidinylpiperazine derivatives are drugs, including:
The anxiolytics are also classified as azapirones due to the azaspirodecanedione moiety in their structures. 1-PP is a common metabolite of most or all of the listed agents. Alnespirone, binospirone, and enilospirone, despite being azapirones, are not piperazines and therefore do not metabolize to 1-PP, and while perospirone and tiospirone are piperazines, they are instead benzothiazole-substituted piperazines and do not metabolize to 1-PP either.