2,3-dimethyl-6,7,8,9-tetrahydrobenzo[7]annulen-5-one

8,9-dimethyl-5,6-dihydro-4H-benzo[1,2]cyclohepta[6,7-b]furan-2,3-dione

5-oxo-5-o-tolyl-valeric acid ethyl ester

5-(4-methylsulfanylphenyl)pentanoic acid

3-溴-6,7,8,9-四氢-5H-苯并环庚酮