5-氯-4-甲酰基噻吩-2-羧酸乙酯

ethyl 5-chloro-4-(dibromomethyl)thiophen-2-carboxylate

(E)-2-chloro-5-ethoxycarbonylthiophen-3-carbaldoxime

ethyl 4-formyl-5-thiocyanatothiophen-2-carboxylate

sodium 5-(ethoxycarbonyl)-3-formylthiophene-2-thiolate