3-ethyl-4-[2-(3-ethyl-3H-benzothiazol-2-ylidene)-ethylidene]-2-thioxo-thiazolidin-5-one 、
对甲苯磺酸甲酯 生成 1,3-diethyl-5-[(3-ethyl-3
H-benzothiazol-2-yliden)-ethylidene]-2-thioxo-imidazolidin-4-one 、 4-(3-ethyl-3
H-benzothiazol-2-yliden)-2-(ethyl-methylsulfanylthiocarbonyl-amino)-thiocrotonic acid
S-methyl ester