2-(methylthio)-8-nitro-6-(trifluoromethyl)-4H-benzo[e][1,3]thiazin-4-one 、
2-(propoxymethyl)-1,4-dioxa-8-azaspiro[4.5]decane 以
乙醇 为溶剂,
以39%的产率得到8-Nitro-2-[3-(propoxymethyl)-1,4-dioxa-8-azaspiro[4.5]decan-8-yl]-6-(trifluoromethyl)-1,3-benzothiazin-4-one