This invention relates to a N-heteroaryl-purin-6-amine of the formula
where R₁ is hydrogen, lower alkyl, and arylloweralkyl; R₂ and R₃ are independently hydrogen, lower alkyl or R₂ and R₃ taken together are aryl; R₄ and R₅ are independently hydrogen, lower alkyl, or R₄ and R₅ taken together are aryl; R₆ is hydrogen, lower alkyl, aryl, arylloweralkyl,
where R₂, R₃, R₄ and R₅ are as defined above, and the pharmaceutically acceptable acid addition salts thereof and where applicable the geometric and optical isomers and racemic mixtures thereof. The compounds of this invention display utility as analgesic and anticonvulsant agents.
本发明涉及一种 N-杂芳基
嘌呤-6-胺,其式如下
其中 R₁ 是氢、低级烷基和芳基低级烷基;R₂ 和 R₃ 独立地是氢、低级烷基或 R₂ 和 R₃ 合在一起是芳基;R₄ 和 R₅ 独立地是氢、低级烷基或 R₄ 和 R₅ 合在一起是芳基;R₆ 是氢、低级烷基、芳基、芳基低级烷基、
其中 R₂、R₃、R₄ 和 R₅ 如上文所定义,以及它们的药学上可接受的酸加成盐,并酌情包括它们的几何异构体、光学异构体和外消旋混合物。本发明的化合物可用作镇痛剂和抗惊厥剂。