| Member | Definition | Class |
|---|
| amrubicin | A synthetic anthracycline antibiotic with molecular formula C25H25NO9. A specific inhibitor of topoisomerase II, it is used (particularly as the hydrochloride salt) in the treatment of cancer, especially lung cancer, where it is a prodrug for the active metabolite, ambrucinol. | amrubicin |
| amrubicinol | A diastereoisomeric mixture resulting from the formal reduction of the acetyl group at position 9 of amrubicin to the corresponding 1-hydroxyethyl group. The active metabolite of amrubicin in lung cancer patients. | amrubicinol |
| fostriecin | A structurally unique, naturally-occurring phosphate monoester isolated from the soil bacterium Streptomyces pulveraceus. It inhibits DNA topoisomerase II as well as several protein phosphatase including PP2A and PPA4, and exhibits potent antitumor activity against several cancer cell lines. | fostriecin |