dimethyl 7,8-dimethoxy-6-[3-methoxy-3-oxo-2-(phenylhydrazono)propyl]-5-nitro-2,4-quinolinedicarboxylate

4-Hydroxy-5-methoxy-1H-pyrrolo[2,3-f]chinolin-2,7,9-tricarbonsaeure-trimethylester

alpha-酮戊二酸二甲酯

3-溴-2-氧代戊二酸 二甲酯

methyl 6-formamido-5-methoxy-1H-indole-2-carboxylate