2-chloro-N-(2-pyridylmethylcarbamoyl)acetamide 、
4-[(4-methyl-2-oxochromen-7-yl)oxymethyl]benzoic acid 在
N,N-二异丙基乙胺 、 sodium iodide 作用下,
以
二甲基亚砜 为溶剂,
以92%的产率得到[2-oxo-2-(2-pyridylmethylcarbamoylamino)ethyl] 4-[(4-methyl-2-oxochromen-7-yl)oxymethyl]benzoate