diethyl 2-[(benzylamino)methylidene]propanedioate

2-(diethoxymethyl)propane-1,3-diol

ethyl 3-methyl-4-[3-(trifluoromethyl)anilino]-[1,2]oxazolo[5,4-b]pyridine-5-carboxylate

7-(2,6-二甲基吡啶-4-基)-1-乙基-4-氧代-喹啉-3-羧酸乙酯

1,4-二氢-4-氧代-7-(4-吡啶基)喹啉-3-羧酸乙酯