4-羟基-3-(3-甲基丁基)萘-1,2-二酮

2,2-dimethylbenzo[h]chromene-5,6-dione

2-methoxy-3-iosobutylpyrazine

3,4-二氢-2,2-二甲基-2H-萘并[1,2-b]吡喃

4-bromo-2,2-dimethyl-3,4-dihydrobenzo[g]chromene-5,10-dione