| abstract |
This invention relates to N-heteroaryl-4-pyrimidinamines of the formulan n where R₁ is hydrogen, loweralkyl, aryl, or arylloweralkyl; R₂ and R₃ are independently hydrogen or loweralkyl, or R₂ and R₃ taken together are aryl; R₄ and R₅ are independently hydrogen or loweralkyl, or R₄ and R₅ taken together are aryl; X is hydrogen, halogen, cyano, nitro, amino, loweralkyl, loweralkoxy, trifluoromethyl orn n where Y is hydrogen, halogen or loweralkyl; m is an integer of 1 to 3; and the pharmaceutically acceptable acid addition salts thereof and where applicable the geometrical and optical isomers and racemic mixtures thereof. The compounds of this invention display utility as memory enhancing agents and as analgesic agents. |