1. Academic Validation
  2. 11-Substituted 2,3-dimethoxy-8,9-methylenedioxybenzo[i]phenanthridine derivatives as novel topoisomerase I-targeting agents

11-Substituted 2,3-dimethoxy-8,9-methylenedioxybenzo[i]phenanthridine derivatives as novel topoisomerase I-targeting agents

  • Bioorg Med Chem. 2008 Sep 15;16(18):8598-606. doi: 10.1016/j.bmc.2008.08.018.
Wei Feng 1 Mavurapu Satyanarayana Yuan-Chin Tsai Angela A Liu Leroy F Liu Edmond J LaVoie
Affiliations

Affiliation

  • 1 Department of Pharmaceutical Chemistry, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854-8020, USA.
Abstract

Several 11-substituted benzo[i]phenanthridine derivatives were synthesized, and their TOP1-targeting activity and cytotoxicity were assessed. Comparative data indicate that TOP1-targeting was often the primary molecular target associated with their cytotoxicity. Several 11-aminoalkyl derivatives, 11-aminocarboxy derivatives as well as the 11-[(2-dimethylamino)ethyl]carboxamide of 2,3-dimethoxy-8,9-methylenedioxybenzo[i]phenanthridine were synthesized and did exhibit considerable cytotoxicity with IC(50) values ranging from 20 to 120 nM in the human lymphoblast tumor cell line RPMI8402.

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