Methyl 5-(3-Pyridinyloxy)-2-furoate

5-氨基吡咯-2-甲酸乙酯, Ethyl 5-Amino-1H-pyrrole-2-carboxylate

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

2-甲基噻唑-5-羧酸乙酯

Methyl 4-(1-Hydroxyiminoethyl)-5-methylisoxazole-3-carboxylate

5-甲基噁唑-4-甲酸乙酯, Ethyl 5-Methyloxazole-4-carboxylate

Methyl Pyrimidine-2-carboxylate

嘧啶-2-羧酸甲酯

methyl 2-(methylthio)pyrimidine-5-carboxylate

6-氯哒嗪3-羧酸乙酯, Ethyl 6-Chloropyridazine-3-carboxylate

Ethyl 5-Phenyl-1,2,4-oxadiazole-3-carboxylate

Ethyl 3-Amino-4-iodo-1-benzothiophene-2-carboxylate

2-甲基苯并[d]噁唑-5-羧酸甲酯, Methyl 2-Methyl-1,3-benzoxazole-5-carboxylate