Compounds of the general formula (I): ##STR1## in which R.sup.1 represents hydrogen or a straight or branched chain alkyl group, or an acyl group of the formula --COR.sup.5 (in which R.sup.5 represents a hydrogen atom or a straight or branched chain alkyl group); R.sup.2 represents an aryl group of the formula: ##STR2## (in which R.sup.6 represents a hydrogen atom or independently one or more of the following groups, that is, hydroxy, alkoxy, alkyl, halogen, dialkylamino and trifluoromethyl, or may represent a 3,4-methylenedioxy group ##STR3## R.sup.3 and R.sup.4 may independently represent hydrogen or a straight or branched chain alkyl group; and N represents 1, 2 or 3; and pharmaceutically acceptable salts thereof; and hydrates of said compounds or salts thereof. The invention also includes processes for the production of these compounds, compositions containing them and methods of treatment using them.
通式(I)的化合物:##
STR1##其中R.sup.1代表
氢或直链或支链烷基基团,或者是一个具有以下结构的酰基基团--COR.sup.5(其中R.sup.5代表
氢原子或直链或支链烷基基团);R.sup.2代表以下结构的芳基基团:##
STR2##(其中R.sup.6代表
氢原子或独立地一个或多个以下基团,即羟基、烷
氧基、烷基、卤素、二烷基
氨基和三
氟甲基,或者可能代表一个3,4-亚甲二
氧基基团##
STR3##R.sup.3和R.sup.4可以独立地代表
氢或直链或支链烷基基团;N代表1、2或3;以及其药学上可接受的盐;以及这些化合物或其盐的
水合物。本发明还包括制备这些化合物的方法、含有它们的组合物以及使用它们的治疗方法。