diethyl 2-[(9H-carbazol-3-ylamino)methylidene]propanedioate

ethyl 4-amino-7-fluoroquinoline-3-carboxylate

ethyl 6-chloro-8-methoxy-4-oxo-1H-quinoline-3-carboxylate

ethyl 4-amino-6-ethoxyquinoline-3-carboxylate

4-氯-1-乙基-1H-吡唑[3,4-b]吡啶-5-羧酸乙酯