ethyl 2-{N-propyl-N-[(2'-[N-triphenylmethyl-1H-tetrazol-5-yl]biphenyl-4-yl)methyl]amino}-5-trifluoromethyl-pyridine-3-carboxylate 、
对甲苯磺酸一水合物 、
sodium hydroxide 以
甲醇 为溶剂,
生成
2-{N-Propyl-N-[(2'-[1H-tetrazol-5-yl]biphenyl-4-yl)methyl]amino}-5-trifluoromethyl-pyridine-3-carboxylic acid