3-[(S)-1-(tert-butyl-dimethyl-silanyloxymethyl)-2-methyl-propylamino]-2-[2,3-dichloro-6-(3-chloro-2-fluoro-benzyl)-pyridine-4-carbonyl]-acrylic acid ethyl ester 在
potassium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.5h,
以30%的产率得到1-[(S)-1-(tert-butyl-dimethyl-silanyloxymethyl)-2-methyl-propyl]-8-chloro-6-(3-chloro-2-fluoro-benzyl)-4-oxo-1,4-dihydro-1,7-naphthyridine-3-carboxylic acid ethyl ester