5-Butyl-2-(2-nitro-phenyl)-4-[2'-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-2H-pyrazole-3-carboxylic acid ethyl ester 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以82%的产率得到5-Butyl-2-(2-nitro-phenyl)-4-[2'-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-2H-pyrazole-3-carboxylic acid