反应详情

4-Hydroxy-2-methyl-N-(5-methyl-3-isoxazolyl)-2H-naphtho [2,1-e]-1,2-thiazine-3-carboxamide-1,1-dioxide, m.p. 235° C, from 2-methyl-4-(1-pyrrolidyl)-2H-naphtho[2,1-e]-1,2-thiazine- 3-carboxylic acid chloride-1,1-dioxide and 3-amino-5-methylisoxazole.