8-fluoro-5-(3-methoxyphenylsulfonyl)-6-methyl-5,6-dihydrophenanthridine 、
环己烯 、
三溴化硼 、
二氯甲烷 在
3-[(8-fluoro-6-methylphenanthridin-5(6H)-yl)sulfonyl]phenol 、 crude product 、 silica gel 、
ethyl acetate n-hexane 作用下,
以to yield 3-[(8-fluoro-6-methylphenanthridin-5(6H)-yl)sulfonyl]phenol as a homogeneous solid (0.37 g, 71%), m.p. 161° C.的产率得到3-[(8-fluoro-6-methylphenanthridin-5(6H)-yl)sulfonyl]phenol