5-氧代-5,6,7,8-四氢喹啉-3-羧酸乙酯

2,3,4,6,7,8-hexahydro-1H-quinolin-5-one

5,6,7,8-四氢喹啉-5-酮

2,3,4,5,6,7-hexahydroacridine-1,8-dione

1,6,7,8-tetrahydroquinoline-4,5-dione