1-[4-(6-fluoroimidazo[1,2-a]pyridin-2-yl)phenyl]-1-ethanone 、
(E)-3-(dimethylamino)-1-[4-(6-fluoroimidazo[1,2-a]pyridin-2-yl)phenyl]-2-propen-1-one 以had been produced in Referential Example 28的产率得到6-fluoro-2-[4-(1H-3-pyrazoyl)phenyl]imidazo[1,2-a]pyridine