2-[(3-Chloro-phenyl)-(2-oxo-2-phenyl-acetyl)-amino]-N-cyclohexyl-3-(4-methoxy-phenyl)-3-oxo-propionamide 在
ammonium acetate 作用下,
以
溶剂黄146 为溶剂,
反应 3.0h,
以70%的产率得到1-(3-Chloro-phenyl)-3-(4-methoxy-phenyl)-6-oxo-5-phenyl-1,6-dihydro-pyrazine-2-carboxylic acid cyclohexylamide