ethyl 6-methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylate

1,4-二氢-6-甲氧基-4-氧代-3-喹啉羧酸甲酯

2-((4-甲氧基苯基氨基)亚甲基)丙二酸二乙酯

对甲氧基苯胺

methyl 3-carbomethoxy-3-(4'-methoxyphenyl)amino-2-propenoate