2-(2,2,8-trimethyl-4H-[1,3]dioxino[4,5-c]pyridin-5-yl)ethanamine 、
4-氰基苯甲醛 以gave 4-{[2-(2,2,8-trimethyl-4H-[1,3]dioxino[4,5-c]pyridin-5-yl)-ethylamino]-methyl}-benzonitrile (54) (318 mg, 47% yield) as a colorless solid的产率得到4-{[2-(2,2,8-trimethyl-4H-[1,3]dioxino[4,5-c]pyridin-5-yl)-ethylamino]-methyl}-benzonitrile