3,4,5,6-tetrahydro-4-methyl-4-methylthio-2H-1,2-oxazin-3(4H)-one 、
2-氯-4-[(N-甲氧基-N-甲氨基)羰基氨基]苯甲基溴 、
2-[2-chloro-4-(methoxycarbonylamino)phenyl]methyl-4,4-dimethyl-3-isoxazolidinone 、
18-冠醚-6 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
生成 2-(2-chloro-4-[(N-methoxy-N-methylamino)carbonylamino]phenyl)methyl-5,6-dihydro-4-methyl-4-methylthio-2H-1,2-oxazin-3(4H)-one