New naphthimidazole and naphthoxazole derivatives, their preparation, and their use in pharmaceuticals
申请人:GRUPPO LEPETIT S.P.A.
公开号:EP0034249A2
公开(公告)日:1981-08-26
Napth[1,2-d]imidazoles and naphth[2,1-d]oxazoles of formula 0
wherein R and R and hydrogen, halogen, alkyl or alkoxy, R2 stands for hydrogen or halogen and A represents one of the following moieties
wherein R3 represents alkyl, cycloalkyl, or a -(CH2)nNR5R6 group in which n is 1,2, or 3, Rsstands for hydrogen or alkyl, R6 is alkyl or R, and R6 taken together with the adjacent nitrogen atom may represent a 4 to 7 membered saturated hetero-ring which may contain a further hetero atom and optionally be substituted e.g. with phenyl and substituted phenyl, R4 stands for hydrogen, alkyl, cycloalkyl or a -(CH2)nNR5R6 group provided that one of R3 and R4 is a -(CH2)n-NR5R6 group, and R7 is -(CH2)n-NR5R6, and their pharmaceutically acceptable acid addition salts are made e.g. by contacting the corresponding naphth[1,2-d]imidazoles or naphth[2,1-d]oxazoles wherein one of R3 and R. or R7 is a -(CH2)nX group where X stands for the residue of a reactive ester with the proper amine of formula HNR,R6 in the presence of an acid acceptor agent. The new compounds are useful as CNS depressant agents.
式 0 的萘并[1,2-d]咪唑和萘并[2,1-d]恶唑
其中 R 和 R 代表氢、卤素、烷基或烷氧基,R2 代表氢或卤素,A 代表下列分子之一
其中 R3 代表烷基、环烷基或-(CH2)nNR5R6 基团,其中 n 为 1、2 或 3,Rs 代表氢或烷基,R6 代表烷基或 R,R6 与相邻的氮原子一起可代表 4 至 7 个成员的饱和杂环,该杂环可包含另一个杂原子并可选择被取代,例如苯基和取代苯基,R4 代表氢、烷基、环烷基或-(CH2)n-NR5R6 基团,条件是 R3 和 R4 中的一个是-(CH2)n-NR5R6 基团,R7 是-(CH2)n-NR5R6,以及它们的药学上可接受的酸加成盐,例如通过以下方法制成将相应的萘并[1,2-d]咪唑或萘并[2,1-d]噁唑(其中 R3 和 R. 或 R7 之一为-(CH2)nX 基团,其中 X 代表活性酯的残基)与式 HNR,R6 的适当胺在酸接受剂存在下接触。这些新化合物可用作中枢神经系统抑制剂。