2,7,8-trimethylindolo<3,2-d>thiazole ethiodide 、
7,8-dimethyl-2-β-acetanilidovinylindolo<3,2-d>thiazole ethiodide 以
乙酸酐 为溶剂,
反应 0.17h,
以30%的产率得到1-Ethyl-2-{(E)-3-[1-ethyl-4,5-dimethyl-1,4-dihydro-thiazolo[5,4-b]indol-(2Z)-ylidene]-propenyl}-4,5-dimethyl-4H-thiazolo[5,4-b]indol-1-ium; iodide