(4-acetyloxy-5,8-dihydronaphthalen-1-yl) acetate

(3-acetyloxy-1a,2,7,7a-tetrahydronaphtho[6,7-b]oxiren-6-yl) acetate

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

5,8-二氢萘-1,4-二酮

6-hydroxytetracene-5,12-dione