申请人:Hoechst-Roussell Pharmaceuticals, Inc.
公开号:US04983608A1
公开(公告)日:1991-01-08
This invention relates to N-heteroaryl-4-pyrimidinamines of the formula ##STR1## where R.sub.1 is hydrogen, loweralkyl, aryl, or arylloweralkyl; R.sub.2 and R.sub.3 are independently hydrogen or loweralkyl, or R.sub.2 and R.sub.3 taken together are aryl; R.sub.4 and R.sub.5 are independently hydrogen or lowealkyl, or R.sub.4 and R.sub.5 taken together are aryl; X is hydrogen, halogen, cyano, nitro, amino, loweralkyl, loweralkoxy, trifluoromethyl or ##STR2## 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.
该发明涉及公式##STR1##的N-杂环基-4-嘧啶胺,其中R.sub.1为氢、较低的烷基、芳基或芳基较低烷基;R.sub.2和R.sub.3分别为氢或较低的烷基,或R.sub.2和R.sub.3一起为芳基;R.sub.4和R.sub.5分别为氢或较低烷基,或R.sub.4和R.sub.5一起为芳基;X为氢、卤素、氰基、硝基、氨基、较低烷基、较低烷氧基、三氟甲基或##STR2##其中Y为氢、卤素或较低烷基;m为1至3的整数;以及其药用可接受的酸加盐,如适用的话,其几何和光学异构体及其混合物。该发明的化合物显示出作为增强记忆剂和镇痛剂的效用。