E. Chojnackawojcik et al., A NEW PUTATIVE 5-HT1A RECEPTOR ANTAGONIST OF THE 1-ARYLPIPERAZINE CLASS OF LIGANDS, European journal of medicinal chemistry, 30(7-8), 1995, pp. 587-592
5-HT1A and 5-HT2A receptor affinities of several omega-alkyl-1-arylpip
erazines containing a terminal pyrimidopurine or 1,3-diazepinopurine r
ing system are reported. Several behavioral models demonstrated that 2
,4,8-trioxo-1,3,9-trihydropyrimidino[2,1-f]purine 8 and its analogs 5
and 6 may be classified as 5-HT1A postsynaptic antagonists, whereas 7,
9 and 10 are partial agonists of 5-HT1A receptors.