Amidino compounds represented by the formula (I) ##STR1## and pharmaceutically acceptable acid addition salts thereof are novel compounds and are useful as powerful antitrypsine, antiplasmin, antikallikrein and anti-thrombin agents. Having strong anti-Cl (Clr, Cls) activities and an anticomplement activity, they are also useful as anticomplement agents. These amidino compounds are prepared by usual esterification of carboxylic acid compounds represented by the formula (II) R.sub.1 --COOH (II) with 4-(.beta.-amidinoethenyl)phenol represented by the formula (III) ##STR2## and, if necessary, can be transformed into pharmaceutically acceptable acid addition salts thereof.
公式(I)所表示的
氨基甲酸化合物及其药学上可接受的酸加成盐是新型化合物,可用作强效抗胰
蛋白酶、抗纤溶酶、抗卡利克雷因和抗凝血酶剂。由于具有强大的抗Cl(Clr、Cls)活性和抗补体活性,它们还可用作抗补体剂。这些
氨基甲酸化合物是通过将公式(II)R.sub.1 - COOH(II)所表示的
羧酸化合物与公式(III)所表示的4-(β-
氨基
乙烯基)
苯酚进行常规酯化反应制备的,必要时,可以转化为其药学上可接受的酸加成盐。