ethyl 1-[3-(2,5-dioxo-1-pyrrolidinyl)propyl]-7-[(4-fluorophenyl)methyl]-4-hydroxy-2-oxo-1,2-dihydro-1,5-naphthyridine-3-carboxylate 、
C.I.酸性橙108 生成 1-[3-(2,5-dioxo-1-pyrrolidinyl)propyl]-7-[(4-fluorophenyl)methyl]-4-hydroxy-N-(2-hydroxyethyl)-2-oxo-1,2-dihydro-1,5-naphthyridine-3-carboxamide