2-(甲氧羰基)烟酸, 2-(Methoxycarbonyl)nicotinic acid

Methyl 2-Fluoronicotinate

2-氟吡啶-3-甲酸甲酯

Ethyl Difluoro(pyridin-2-yl)acetate

2,2-二氟-2-(2-吡啶基)乙酸乙酯

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

4-溴-3-羟基噻吩-2-羧酸甲酯

Ethyl 5-Chlorothiophene-2-carboxylate

5-氯噻吩-2-甲酸乙酯

Ethyl 2-Methyl-1,3-thiazole-5-carboxylate

2-甲基噻唑-5-羧酸乙酯

2-氨基噁唑-5-羧酸乙酯, Ethyl 2-Amino-1,3-oxazole-5-carboxylate

Methyl 5-chloropyrazine-2-carboxylate

5-氯-2-吡嗪甲酸甲酯

Ethyl 6-Oxo-1,6-dihydropyridazine-3-carboxylate

Ethyl 4-Chloro-1-benzothiophene-2-carboxylate