10,11-dibromo-10,11-dihydrodibenzo[a,d]cyclohepten-5-one

10,11-二溴-10,11-二氢-5H-二苯并[a,d]-5-环庚酮

5-二苯并环庚烯酮

10,11-二氢二苯并[a,b]环庚烯-5-酮

10,11-二氢-5H-二苯并[a,d]环庚烯