1-(6,7,8,9-Tetrahydro-5H-cyclohept[d]-imidazo[2,1-b]thiazol-3-yl)-ethanone 、
3-氟苯甲醛 以to give 3-(3-fluorophenyl)-1-(6,7,8,9-tetrahydro-5H-cyclohept [d]imidazo[2,1-b]thiazol-3-yl)-2-propene-1-one (Formula N-5, X=3-fluoro), 3.08 g, m.p. 176-177°的产率得到3-(3-fluorophenyl)-1-(6,7,8,9-tetrahydro-5H-cyclohept [d]imidazo[2,1-b]thiazol-3-yl)-2-propene-1-one