[5-(3'-tert-butyl-5'-methyl-biphenyl-4-sulfonylamino)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy]-acetic acid tert-butyl ester 、
sodium hydroxide 以to give [5-(3′-tert-butyl-5′-methyl-biphenyl-4-sulfonylamino)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy]-acetic acid (13 mg, 18% yield)的产率得到[5-(3'-tert-butyl-5'-methyl-biphenyl-4-sulfonylamino)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy]-acetic acid