2-乙氧基-2-氧代乙基丁酸酯

3-甲基戊烯二酸二乙酯

ethyl 2-(1,4,7,10-tetraoxa-13-azacyclopentadec-13-yl)acetate

3-氨基呋喃并2,3-c吡啶-2-羧酸乙酯

ethyl 5-iodo-1-benzofuran-2-carboxylate