6-甲基环己-1,3-二烯-1-甲醛

(5,6,11,12-tetraoxo-1,4,4a,12a-tetrahydrotetracen-1-yl) acetate

(5,12-dihydroxy-6,11-dioxo-1,4-dihydrotetracen-1-yl) acetate

(6,11-dihydroxy-5,12-dioxo-1,4,4a,12a-tetrahydrotetracen-1-yl) acetate

(6,11-dihydroxy-5,12-dioxo-1,2,3,4,4a,12a-hexahydrotetracen-1-yl) acetate