title: Synthesis of N-substituted 5-[2-(N-alkylamino)ethyl]dibenzo[c,h][1,6]naphthyridines as novel topoisomerase I-targeting antitumor agents.
abstract: Several N-alkyl and N,N-dialkyl 5H-8,9-dimethoxy-5-(2-aminoethyl)-2,3-methylenedioxydibenzo[c,h][1,6]naphthyridin-6-ones have been identified as topoisomerase I-targeting agents with potent antitumor activity. In the present study, the impact on biological activity of substitution of a trifluoromethyl, cyano, aminocarbonyl, or ethynyl group on a N-methyl substituent of N,N-dimethyl-, N-methyl-N-ethyl-, and N-methyl-N-isopropyl 5H-8,9-dimethoxy-5-(2-aminoethyl)-2,3-methylenedioxydibenzo[c,h][1,6]naphthyridin-6-ones was assessed.
authors.affiliation: Department of Pharmaceutical Chemistry, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854-8020, USA.
authors.forename: Wei
authors.initials: W
authors.lastname: Feng
authors.forename: Mavurapu
authors.initials: M
authors.lastname: Satyanarayana
authors.forename: Liang
authors.initials: L
authors.lastname: Cheng
authors.forename: Angela
authors.initials: A
authors.lastname: Liu
authors.forename: Yuan-Chin
authors.initials: YC
authors.lastname: Tsai
authors.forename: Leroy F
authors.initials: LF
authors.lastname: Liu
authors.forename: Edmond J
authors.initials: EJ
authors.lastname: LaVoie
mesh_terms: D000478:Alkylation; D000588:Amines / Q000737:chemistry*; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D001554:Benzene / Q000737:chemistry*; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D004264:DNA Topoisomerases, Type I / Q000378:metabolism; D004791:Enzyme Inhibitors / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D006801:Humans; D015394:Molecular Structure; D009287:Naphthyridines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013329:Structure-Activity Relationship; D059004:Topoisomerase I Inhibitors
chemical_list: D000588:Amines; D000970:Antineoplastic Agents; D004791:Enzyme Inhibitors; D009287:Naphthyridines; D059004:Topoisomerase I Inhibitors; D004264:DNA Topoisomerases, Type I; D001554:Benzene