[(R)-4-(3-bromo-5-trifluoromethyl-benzenesulfonylamino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid ethyl ester 、
sodium hydroxide 在
乙醚 、 petroleum ether 作用下,
以
四氢呋喃 为溶剂,
反应 4.0h,
以to afford [(R)-4-(3-bromo-5-trifluoromethyl-benzenesulfonylamino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid (13.3 mg, 78.8%) as a white powder的产率得到[(R)-4-(3-bromo-5-trifluoromethyl-benzenesulfonylamino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid