(5-{[5-(3-tert-butyl-5-methyl-phenyl)-pyridine-2-sulfonyl]-methyl-amino}-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy)-acetic acid tert-butyl ester 、
sodium hydroxide 以to give (5-{[5-(3-tert-butyl-5-methyl-phenyl)-pyridine-2-sulfonyl]-methyl-amino}-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy)-acetic acid (50 mg, 37% yield)的产率得到(5-{[5-(3-tert-butyl-5-methyl-phenyl)-pyridine-2-sulfonyl]-methyl-amino}-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy)-acetic acid