2-carbomethoxy-4-hydroxy-7-methoxy-6-methylquinoline 、 在
caesium carbonate 作用下,
以
N-甲基吡咯烷酮 为溶剂,
反应 7.0h,
以40%的产率得到methyl 4-[(3R,5S)-1-[(2S)-2-(cyclopentyloxycarbonylamino)-3,3-dimethylbutanoyl]-5-[[(1R,2S)-2-ethenyl-1-methoxycarbonylcyclopropyl]carbamoyl]pyrrolidin-3-yl]oxy-7-methoxy-6-methylquinoline-2-carboxylate