1: 1-methylguanidine hydrochloride With ethanol; sodium ethanolate T=20°C; 1 h; 2: 3-(dimethylamino)-1-(6-phenylpyridin-3-yl)prop-2-en-1-one in ethanol 5 h; Reflux;

sodium ethanolate in ethanol 5 h; Heating;