2,8-dimethoxynaphthalene-1,4-dione

2,5-二氮杂环丙烷基-1,4-苯醌

4a,5,8,8a-tetrahydro-2-methoxynaphthalene-1,4-dione

1,4-dihydro-1,7-dimethoxy-1,4-ethanonaphthalene-5,8-diol