7-[N'-(3-dimethylamino-propyl)-ureido]-3-phenyl-coumarin
7-[N'-(2-dimethylamino-ethyl)-ureido]-3-phenyl-coumarin
7-(2-methoxy-ethoxycarbonylamino)-3-phenyl-coumarin
7-butoxycarbonylamino-3-phenyl-coumarin
7-[N'-(2-hydroxy-ethyl)-ureido]-3-phenyl-coumarin