8-imino-7-(3,4,5-trimethoxyphenyl)-7,10-dihydro-8H,11H-[1,3]thiazino[4',5':6,5]pyrano[3,2-h]quinoline-10-thione 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
生成 8,10-dithioxo-7-(3,4,5-trimethoxyphenyl)-8,9,10,11-tetrahydro-7H-pyrimido[4',5':6,5]pyrano[3,2-h]quinoline