克拉度酸

2-[2-[(4-methylbenzoyl)amino]phenoxy]acetic acid

benzyl 6-methyl-4-(4-nitrophenyl)-2-oxo-3,4-dihydro-1H-pyridine-5-carboxylate

methyl (Z)-2-hydroxy-4-oxo-4-thiophen-2-ylbut-2-enoate

2-[(4-chlorophenyl)methylidene]-4H-1,4-benzoxazin-3-one