[4-(3-amino-benzene-sulfonyl-amino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid ethyl ester 、
甲基磺酰氯 以[4-(3-methanesulfonylamino-benzene-sulfonyl-amino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid ethyl ester (15 mg, 70%) was obtained as a white solid的产率得到[4-(3-methanesulfonylamino-benzene-sulfonyl-amino)-4,5,6,7-tetrahydro-indazol-1-yl]-acetic acid ethyl ester