反应详情

Using 2-hydrazino-5-methyl-1H-benzimidazole (4) obtained in Example 1, step 3 and ethyl 2-acetyl-3-(4-phenylphenyl)propanoate (33), and by a method similar to that in Example 1, step 4, 3-methyl-1-(5-methyl-1H-benzimidazol-2-yl)-4-[(4-phenylphenyl)methyl]-1H-pyrazol-5-ol (34) was obtained.