3,4-dihydro-4-methoxycarbonyl-2-methyl-3-oxo2H-thieno[ 2,3-e] 1,2-thiazine 1,1-dioxide 、
2-氨基吡啶 在
溶剂黄146 作用下,
以
邻二甲苯 为溶剂,
反应 1.0h,
以3,4-Dihydro-2-methyl-3-oxo-4-(2-pyridyl-carbamoyl)-2H-thieno[2,3-e]1,2-thiazine 1,1-dioxide, melting point 255° C. to 256° C. (decomposition), is obtained的产率得到3,4-Dihydro-2-methyl-3-oxo-4-(pyridin-2-yl-carbamoyl)-2H-thieno[2,3-e]1,2-thiazin 1,1-dioxide