The invention relates to a process for preparing a salt of an optionally substituted 4-benzimidazol-2-ylmethylamino)-benzamidine, characterised in that (a) an optionally correspondingly substituted diaminobenzene is condensed with 2-[4-(1,2,4-oxadiazol-5-on-3-yl)-phenylamino]-acetic acid, b) i) the product thus obtained is hydrogenated, ii) optionally the amidino group is carbonylated, without isolating the intermediate product of the hydrogenation beforehand and iii) without prior isolation of the intermediate product of the carbonylation the desired salt is isolated.本發明係關於一種製備視情況經取代之4-(苯幷咪唑-2-基甲基胺基)-苯甲脒之鹽的方法,其特徵在於:(a)使視情況經相應取代之二胺基苯與2-[4-(1,2,4-噁二唑-5-酮-3-基)-苯基胺基]-乙酸縮合;(b)i)將由此獲得之產物氫化,ii)視情況使甲脒基羰化而無需預先分離氫化之中間產物,及iii)不經預先分離羰化之中間產物而分離所要之鹽。
