1,1-dimethylethyl 4-[({2-[(methyloxy)carbonyl]phenyl}amino)carbonyl]-1-piperidine carboxylate 在
甲苯 作用下,
以
trifluoracetic acid-dichloromethane 为溶剂,
反应 3.0h,
以to give the title compound (1.2 g, 100%) as a brown syrup的产率得到methyl 2-[(4-piperidinylcarbonyl)amino]benzoate