5-phenylsulfanylfuran-2-carboxylic acid

methyl 5-pyridin-3-ylfuran-2-carboxylate

5-(2,5-Dichlorophenyl)-2-furoyl chloride

5-(2-氨基苯基)-呋喃-2-羧酸乙酯

5-(3-氟苯基)-呋喃-2-羧酸甲酯