5-溴-2-(甲基硫代)嘧啶-4-羧酸乙酯

(3E)-1-(3-chloro-4-fluorophenyl)-3-(ethoxymethylidene)pyrrolidine-2,5-dione

2-ethoxy-3-nitro-1,5-naphthyridine

ethyl 6-methoxypyridine-3-carboxylate

ethyl 2-(2-hydroxybenzoyl)benzoate