[5-({5-[3-(2-hydroxy-ethyl)-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-(2-hydroxy-ethyl)-phenyl]-pyridine-2-sulfonyl}-methyl-amino)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy]-acetic acid (20 mg, 22% yield)的产率得到[5-({5-[3-(2-hydroxy-ethyl)-phenyl]-pyridine-2-sulfonyl}-methyl-amino)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-yloxy]-acetic acid