4-(4-chloro-phenyl)-6-(3,4-dimethyl-phenyl)-2-thioxo-tetrahydro-pyrimidin-5-one 在
盐酸 、
sodium nitrate 作用下,
以
1,4-二氧六环 为溶剂,
反应 3.5h,
生成 5-(4-chloro-phenyl)-7-(3,4-dimethyl-phenyl)-2-(4-nitrophenyl-hydrazono)-tetrahydro-7H-thiazolo[3,2-a]pyrimidin-3,6-dione