3-methyl-2-(1-phenyl-1,4-dihydro-pyridin-4-ylmethylene)-2,3-dihydro-benzothiazole 、
1-phenyl-pyridinium; iodide 以
吡啶 为溶剂,
生成 4-<(N-Methyl-2,3-dihydro-benzothiazolyliden-(2))-methyl>-N-phenyl-pyridiniumiodid (3-Methyl-1'-phenyl-4'-pyrido-thiacyanin-iodid)