Antimalarial <i>N</i><sup>1</sup>,<i>N</i><sup>3</sup>-Dialkyldioxonaphthoimidazoliums: Synthesis, Biological Activity, and Structure–activity Relationships
作者:Stephen Ahenkorah、Dina Coertzen、Jie Xin Tong、Kevin Fridianto、Sergio Wittlin、Lyn-Marie Birkholtz、Kevin S. W. Tan、Yulin Lam、Mei-Lin Go、Richard K. Haynes
DOI:10.1021/acsmedchemlett.9b00457
日期:2020.1.9
Here we report the nanomolar potencies of N 1,N 3-dialkyldioxonaphthoimidazoliums against asexual forms of sensitive and resistant Plasmodium falciparum. Activity was dependent on the presence of the fused quinone-imidazolium entity and lipophilicity imparted by the N1/N3 alkyl residues on the scaffold. Gametocytocidal activity was also detected, with most members active at IC50 < 1 μM. A representative
Synthesis and Cytotoxicity of 1,2-Disubstituted Naphth[2,3-<i>d</i>]imidazole-4,9-diones and Related Compounds
作者:Sheng-Chu Kuo、Toshiro Ibuka、Li-Jiau Huang、Jin-Cherng Lien、Shyue-Ren Yean、Shung-Chieh Huang、Daniel Lednicer、Susan Morris-Natschke、Kuo-Hsiung Lee
DOI:10.1021/jm950247k
日期:1996.1.1
derivatives of the lead structure, 1-ethyl-2-methylnaphth[2,3-d]imidazole-4,9-dione (5). Their cytotoxic activity in the National Cancer Institute's in vitro cancer cell line panel is reported. In general, substitution of various alkyl, phenyl, or benzyl moieties did not improve activity, and compound 5 remains the most active naphth[2,3-d]imidazole-4,9-dione derivative. However, high levels of activity