5-氟吡啶-2-甲酸甲酯, Methyl 5-Fluoropyridine-2-carboxylate

Methyl 4-bromo-3-hydroxythiophene-2-carboxylate

4-溴-3-羟基噻吩-2-羧酸甲酯

Methyl 2-bromofuran-3-carboxylate

Ethyl 3,4-Dimethyl-1H-pyrrole-2-carboxylate

3,4-二甲基-1H-吡咯-2-羧酸乙酯

Methyl 2-Amino-1,3-thiazole-4-carboxylate

2-氨基-1,3-噻唑-4-羧酸甲酯

4-甲基噻唑-2-甲酸乙酯, Ethyl 4-Methyl-1,3-thiazole-2-carboxylate

Ethyl Isoxazole-3-carboxylate

异噁唑-3-羧酸乙酯

Methyl 3-Chloropyrazine-2-carboxylate

3-氯吡嗪-2-甲酸甲酯

4-氨基-2-甲基嘧啶-5-羧酸乙酯, Ethyl 4-amino-2-methylpyrimidine-5-carboxylate

Methyl 2-chloropyrimidine-4-carboxylate

2-氯嘧啶-4-甲酸甲酯