[5-(3'-isopropyl-biphenyl-4-sulfonylamino)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy]-acetic acid tert-butyl ester 、
sodium hydroxide 以to give [5-(3′-isopropyl-biphenyl-4-sulfonylamino)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy]-acetic acid (28 mg, 39% yield)的产率得到[5-(3'-isopropyl-biphenyl-4-sulfonylamino)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy]-acetic acid