ethyl 7-(2-fluoro-4-iodophenylamino)-6-methyl-5-oxo-5,6-dihydro-1,6-naphthyridine-8-carboxylate 、
O-(2-(tert-butyldimethylsilyloxy)ethyl)hydroxylamine 在
SiO2 、
乙酸乙酯 作用下,
反应 2.0h,
以to give N-(2-(tert-butyldimethylsilyloxy)ethoxy)-7-(2-fluoro-4-iodophenylamino)-6-methyl-5-oxo-5,6-dihydro-1,6-naphthyridine-8-carboxamide (29.0 mg, 22%) as a yellow oil的产率得到N-(2-(tert-butyldimethylsilyloxy)ethoxy)-7-(2-fluoro-4-iodophenylamino)-6-methyl-5-oxo-5,6-dihydro-1,6-naphthyridine-8-carboxamide