1-Carbocyclic aryl-2-mono or -bis(alkoxycarbonyl) guanidino ethanes, and methods for their preparation and the preparation therefrom of 4,5-dihydro-2-alkoxycarbonylamino-5-carbocyclic aryl imidazoles
申请人:SYNTEX (U.S.A.) INC.
公开号:EP0001500A1
公开(公告)日:1979-04-18
A method for preparing 4,5-dihydro-2-alkoxycarbonylamino-5-carbocyclic aryl imidazoles and substituted aryl derivatives thereof is disclosed. The compounds are prepared by treating a 1-(carbocyclic aryl)-2-(2',3-bis-carbo- alkoxy)guanidino ethane of the formula
where R is C, to C. linear or branched alkyl, R' is phenyl optionally substituted with the radical methylenedioxy or at least one hydroxy, halo, trifluoromethyl, C1 to C6 linear or branched alkoxy. C, to C6 linear or branched alkyl; or 1-naphthyl or 2-naphthyl; and X is halo, mesyloxy or tosyloxy; with a protic solvent solution or dispersion of an alkali metal or alkaline earth metal hydroxide, carbonate or alkoxide. The reaction can alternatively be carried out on the corresponding (3'-mono-carboalkoxy)guanidino ethanes. These latter compounds can be prepared by treating the above bis(carboalkoxy)guanidino ethanes with an aprotic solvent solution or dispersion of an alkali metal or alkaline earth metal hydroxide, carbonate or alkoxide. These mono (carboalkoxy)guanidino ethanes are useful as psychotherapeutic agents in treating or palliating abnormal conditions, in mammals, which are relating to the central nervous system.
本发明公开了一种制备 4,5-二氢-2-烷氧基羰基氨基-5-碳环芳基咪唑及其取代芳基衍生物的方法。这些化合物的制备方法是将式中的 1-(碳环芳基)-2-(2',3-双羧基烷氧基)胍基乙烷
其中 R 是 C,至 C.直链或支链烷基,R'是任选被基团亚甲基二氧基或至少一个羟基、卤代、三氟甲基、C1 至 C6 直链或支链烷氧基取代的苯基。C1-C6直链或支链烷基;或 1-萘基或 2-萘基;X 为卤代、间氧基或对氧基;与碱金属或碱土金属氢氧化物、碳酸盐或氧化碱的原生溶剂溶液或分散液反应。该反应也可以在相应的(3'-单羧基烷氧基)胍基乙烷上进行。这些后一种化合物可以通过用碱金属或碱土金属氢氧化物、碳酸盐或氧化碱的无相溶 剂溶液或分散液处理上述双(羧基烷氧基)胍基乙烷来制备。这些单(羧烷氧基)胍基乙烷可用作精神治疗剂,用于治疗或缓解哺乳动物中与中枢神经系统有关的异常状况。