1H-1,2,4-triazole-1-acetic acid monohydrochloride 、 (S)-benzyl 4-(2-(1H-1,2,4-triazol-1-yl)acetyl)-3-(4-(4-fluorophenoxy)phenylcarbamoyl)piperazine-1-carboxylate 以respectively, gave Compound 261, (S)-1-(2-(1H-1,2,4-triazol-1-yl)acetyl)-4-benzyl-N-(4-(4-fluorophenoxy)phenyl)piperazine-2-carboxamide (67.9 mg, 19%)的产率得到