(10R,11S)-8-Bromo-8,9,10,11-tetrahydro-dibenzo[a,h]acridine-9,10,11-triol

trans-10,11-diacetoxy-10,11-dihydrodibenz(a,h)acridine

8-bromo-10α,11β-diacetoxy-8,9,10,11-tetrahydrodibenz(a,h)acridine