Document Report Card

ID: ALA1132214

Journal: J Med Chem

Title: Synthesis, mode of action, and biological activities of rebeccamycin bromo derivatives.

Authors: Moreau P, Anizon F, Sancelme M, Prudhomme M, Sevère D, Riou JF, Goossens JF, Hénichart JP, Bailly C, Labourier E, Tazzi J, Fabbro D, Meyer T, Aubertin AM.

Abstract: Bromo analogues of the natural metabolite rebeccamycin with and without a methyl substituent on the imide nitrogen were synthesized. The effects of the drugs on protein kinase C, the binding to DNA, and the effect on topoisomerase I were determined. The drugs' uptake and their antiproliferative activities against P388 leukemia cells sensitive and resistant to camptothecin, their antimicrobial activity against a Gram-positive bacterium (B. cereus), and their anti-HIV-1 activity were measured and compared to those of the chlorinated and dechlorinated analogues. Dibrominated imide 5 shows a remarkable activity against topoisomerase I, affecting both the kinase and DNA cleavage activity of the enzyme. The marked cytotoxic potency of this compound depends essentially on its capacity to inhibit topoisomerase I.

CiteXplore: 10346933

DOI: 10.1021/jm980702n