2-{4-[2-(cyclopentyloxy)ethoxy]phenoxymethyl}oxirane 、 N-(2-amino-ethyl)-N'-(4-methoxycarbonyl-phenyl)urea monohydrochloride 、
1-(2-(3-(4-(2-(cyclopentyloxy)ethoxy)phenoxy)-2-hydroxypropylamino)ethyl)-3-(4-nitrophenyl)urea 以to give 68 mg (37%) of a white solid的产率得到methyl 4-(3-(2-(3-(4-(2-(cyclopentyloxy)ethoxy)phenoxy)-2-hydroxypropylamino)ethyl)ureido)benzoate