Compounds of formula (I):
or a pharmaceutically acceptable salt thereof, or solvate of either entity, wherein R4 is a guanidinyl moiety and the other substituents are as defined in the text, are urokinase inhibitors.
式(I)的化合物:或其药用可接受盐,或者两者的溶剂化合物,其中R4是
胍基基团,其他取代基如文本中定义的那样,是
尿激酶抑制剂。