3-bromo-5-methyl-tropolone

4-dichloro-2-methoxy-4-methyl-2,5-cyclohexadienone

5-methyl-2-methylamino-cycloheptatrienone

2-氯-4-甲基-2,4,6-环庚三烯-1-酮

2-chloro-5-methyl-cycloheptatrienone