(2-acetyl-4-acetyloxy-5,10-dioxo-1H-cyclopenta[b]anthracen-11-yl) acetate

Acetic acid (2R,3S)-11-acetoxy-2-acetyl-3-bromo-2-hydroxy-5,10-dioxo-2,3,5,10-tetrahydro-1H-cyclopenta[b]anthracen-4-yl ester

Acetic acid (2R,3S)-2,11-diacetoxy-2-acetyl-3-bromo-5,10-dioxo-2,3,5,10-tetrahydro-1H-cyclopenta[b]anthracen-4-yl ester

Acetic acid (1S,2S)-2,4,11-triacetoxy-2-acetyl-5,10-dioxo-2,3,5,10-tetrahydro-1H-cyclopenta[b]anthracen-1-yl ester

(1aR,10aS)-10a-acetyl-3,8-dioxo-1a,8,10,10a-tetrahydro-3H-naphtho[2',3':5,6]indeno[1,2-b]oxirene-2,9-diyl diacetate