4-chloro-7-(1-methylcyclopropyl)-7H-imidazo[4,5-c]pyridazine 、
2-(4'-ethylsulfonyl-6-fluorobiphenyl-3-yl)-4,4,5,5-tetramethyl[1,3,2]dioxaborolane 以to afford the title compound as an off white solid in 32% yield, 20 mg的产率得到4-[4'-(ethylsulfonyl)-6-fluorobiphenyl-3-yl]-7-(1-methylcyclopropyl)-7H-imidazo[4,5-c]pyridazine