(Z)-2-azido-3-[6-(chloro-difluoro-methyl)-4-furan-2-yl-pyridin-2-yl]-acrylic acid ethyl ester 以
N,N-二甲基甲酰胺 为溶剂,
反应 0.17h,
以to give 7-(chloro-difluoro-methyl)-5-furan-2-yl-pyrazolo[1,5-a]pyridine-2-carboxylic acid ethyl ester (10.6 mg, 35%) as an off-white solid的产率得到7-(chloro-difluoro-methyl)-5-furan-2-yl-pyrazolo[1,5-a]pyridine-2-carboxylic acid ethyl ester