ethyl 2-({[(5-chloro-2-methylanilino)carbothioyl]amino}oxy)acetate 、
草酰氯单乙酯 在
乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 1.25h,
以to give 13.1 g of ethyl 2-{[3-(5-chloro-2-methylphenyl)-4,5-dioxo-2-thioxo-1-imidazolidinyl]oxy}acetate as a solid, m.p. 157–159° C的产率得到ethyl 2-{[3-(5-chloro-2-methylphenyl)-4,5-dioxo-2-thioxo-1-imidazolidinyl]oxy}acetate