(1,6-difluoro-4-hydroxy-naphthalen-2-yl)-acetic acid methyl ester 、
2-溴-5-(乙砜基)吡啶 以[1,6-difluoro-4-(5-ethanesulfonyl-pyridin-2-yloxy)-naphthalen-2-yl]-acetic acid (10 mg, 12%) was obtained as a white solid的产率得到[1,6-difluoro-4-(5-ethanesulfonyl-pyridin-2-yloxy)-naphthalen-2-yl]-acetic acid