2-氨基-4-甲基吡啶 、 5-methyl-3-carbomethoxy-4-oxo-2,3,4,5-tetrahydrothiopyrano<3,2-c><1,2>benzothiazine 6,6-dioxide 以
xylene 为溶剂,
反应 5.0h,
以81.7%的产率得到10-Methyl-1,9,9-trioxo-2,3,9,10-tetrahydro-1H-4,9λ
6-dithia-10-aza-phenanthrene-2-carboxylic acid (4-methyl-pyridin-2-yl)-amide