1-hydroxy-8-methoxy-3-methylanthracene-9,10-dione

1,8-二甲氧基-3-甲基蒽酮

7,8-Dihydro-1,6,11-trimethoxy-5,12-naphthacenedione

4,6,11-trimethoxy-7,8-dihydrotetracene-5,12-dione

5,7,12-trimethoxy-3,4-dihydro-1H-tetracene-2,6,11-trione