title: 1,4-disubstituted anthracene antitumor agents.
abstract: Three different types of 1,4-disubstituted anthracenes were synthesized, and their cytotoxicity in a panel of tumor cells was compared with that of the corresponding 9,10-disubstituted anthracenes. The panel contained human myeloma, melanoma, colon, and lung cancer cells and sensitive and multidrug-resistant murine L1210 leukemia cells. These compounds had [[(dimethylamino)ethyl]amino]methyl, N-[(dimethylamino)ethyl]carbamoyl, and carboxaldehyde (4,5-dihydro-1H-imidazol-2-yl)hydrazone side chains. The 1,4-diamide was more potent across the tumor panel than the corresponding 9,10-isomer, but the 1,4-diamine and the 1,4-hydrazone were less potent than their 9,10-isomers. Although the 1,4-hydrazone was active against P388 leukemia in mice, it was inactive against L1210 leukemia. Within each pair of compounds, the one with greater average potency against tumor cells gave a greater increase in the transition melt temperature of DNA.
authors.affiliation: Department of Pharmacology and Toxicology, University of Arizona, Tucson 85721, USA.
authors.forename: B S
authors.initials: BS
authors.lastname: Iyengar
authors.forename: R T
authors.initials: RT
authors.lastname: Dorr
authors.forename: D S
authors.initials: DS
authors.lastname: Alberts
authors.forename: A M
authors.initials: AM
authors.lastname: Sólyom
authors.forename: M
authors.initials: M
authors.lastname: Krutzsch
authors.forename: W A
authors.initials: WA
authors.lastname: Remers
mesh_terms: D000818:Animals; D000873:Anthracenes / Q000138:chemical synthesis* / Q000494:pharmacology*; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D019008:Drug Resistance, Neoplasm; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D051379:Mice; D013329:Structure-Activity Relationship; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D000873:Anthracenes; D000970:Antineoplastic Agents