3-(4-羟基-3-甲氧基苯基)-2-甲基丙烯酸

2-[(3-methoxy-4-oxocyclohexa-2,5-dien-1-ylidene)methylamino]benzoic acid

methyl 4-formyl-2-hydroxybenzoate

4-[(2-氟苄基)氧基]-3-甲氧基苯甲醛

2,4-呋喃二羧酸