1-(2,3-Dimethylimidazo[2,1-b]-thiazol-5-yl)-ethanone 、
苯甲醛 、
sodium methylate 在
2,3-Dimethyl-α-(2-phenyl-E-ethenyl)imidazo[2,1-b]thiazole-5-methanone 、
异丙醇 作用下,
以
四氢呋喃 、 ice water 为溶剂,
反应 20.5h,
以gave pure 2,3-Dimethyl-(2-phenyl-E-ethenyl)imidazo[2,1-b]thiazol-5-yl methanone (FIG. D-2), m.p. 189-190°的产率得到2,3-Dimethyl-α-(2-phenyl-E-ethenyl)imidazo[2,1-b]thiazole-5-methanone