(5-{methyl-[4-(5-methyl-pyridin-3-yl)-benzenesulfonyl]-amino}-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy)-acetic acid tert-butyl ester 、
单水氢氧化锂 以to give (5-{methyl-[4-(5-methyl-pyridin-3-yl)-benzenesulfonyl]-amino}-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy)-acetic acid (20 mg, 50%)的产率得到(5-{methyl-[4-(5-methyl-pyridin-3-yl)-benzenesulfonyl]-amino}-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy)-acetic acid