2-chloro-6-fluorobenzoyl isocyanate 、
tert-butyl 2-[4-methoxy-3-(methoxycarbonyl)phenyl]hydrazinecarboxylate 在
tert-butyl 2-[(2-chloro-6-fluorobenzoyl)carbamoyl]-2-[4-methoxy-3-(methoxycarbonyl)phenyl]hydrazinecarboxylate 作用下,
以
二氯甲烷 为溶剂,
以to afford 3.0 g of desired product的产率得到tert-butyl 2-[(2-chloro-6-fluorobenzoyl)carbamoyl]-2-[4-methoxy-3-(methoxycarbonyl)phenyl]hydrazinecarboxylate