The present invention provides benzimidazoles of the general formula: ##STR1## wherein R.sub.1, X, A, and R.sub.2 are as defined in the specification. The present invention also provides processes for the preparation of these new benzimidazoles and pharmaceutical compositions containing them, as well as intermediates for the preparation thereof. The new benzimidazoles are useful to treat heart or circulatory diseases which respond to a lowering of blood pressure, a positive inotropic action and/or an improvement in microcirculation.
本发明提供了一般式如下的
苯并咪唑:##STR1##其中R.sub.1,X,A和R.sub.2如规范中所定义。本发明还提供了制备这些新
苯并咪唑的方法和含有它们的制药组合物,以及用于制备它们的中间体。这些新
苯并咪唑对于治疗对降低血压、正性肌力作用和/或改善微循环有反应的心脏或循环疾病是有用的。