3,4,5,6,7,8-六氢-2(1H)-喹啉酮

methyl 3-(2-oxocyclohexyl)propanoate

4,4a,5,6,7,8-六氢-3H-萘-2-酮

4,5,6,7,8,8a,9,10-octahydro-3H-phenanthren-2-one

2-(3-oxobutyl)cyclohexan-1-one