CH-0793076, a hexacyclic camptothecin analog, is an active drug and major metabolite of TP300. CH-0793076 is efficacious against cells expressing BCRP (breast cancer resistance protein). CH-0793076 inhibits DNA topoisomerase I (IC50: 2.3 μM).
Zabofloxacin hydrochloride is a potent and seletive bacterial type II and IV topoisomerases inhibitor, has excellent activity against gram-positive pathogens including Steptococcus aureus, Streptococcus pyogenes and S.pneumonia.
Zabofloxacin is a potent and seletive bacterial type II and IV topoisomerases inhibitor, and has excellent activity against gram-positive pathogens including Steptococcus aureus, Streptococcus pyogenes and S.pneumonia.
Rebeccamycin is an antitumor antibiotic+ inhibits DNA topoisomerase I. Rebeccamycin appears to exert its primary antineoplastic effect by poisoning topoisomerase I. It also has a negligible effect on protein kinase C and topoisomerase II.