2,3-Dihydro-4-hydroxy-3-oxofuro[2,3-b]quinoline

2-苯胺-4-氧代-4,5-二氢-3-呋喃羧酸乙酯

2,3-Dihydro-4-methoxy-3-oxofuro[2,3-b]quinoline

2-Chloro-4-cyano-3-vinylquinoline