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An in vitro investigation of the structure-activity profiles for a range of 9-anilinoacridines on drug-resistant Plasmodium falciparum is reported. C-3, 6-diamino substitution, low lipophilicity, and high pKa values substantially increased the activities of the 9-anilinoacridines tested. There appeared to be no correlation between DNA binding and(More)
A series of novel 5-arylidene-2-thioxoimidazolidin-4-ones were investigated as inhibitors of the lymphocyte-expressed pore-forming protein perforin. Structure-activity relationships were explored through variation of an isoindolinone or 3,4-dihydroisoquinolinone subunit on a fixed 2-thioxoimidazolidin-4-one/thiophene core. The ability of the resulting(More)
A number of 1'-substituted 9-anilinoacridines were evaluated for their activities against promastigote and amastigote forms of Leishmania major and for their toxicities to human Jurkat leukemia cells. Several compounds possessing 1'-NH-alkyl substituents produced more than 80% growth inhibition of macrophage-infected L. major amastigotes at or below a(More)
The requirement for rational drug design in the search for new agents that are active against parasitic protozoa prompted our in vitro studies with a group of 9-anilinoacridines. In vitro growth assays with Trypanosoma lewisi identified a series of C-1' alkylaminoacridines which possess previously unreported potent growth-inhibitory activities against T.(More)
The sorting problem is of fundamental importance in non-numerical algorithms. Many applications require the ordering of data based the relationship of some set of keys with in the data. Merging is a natural companion of sorting, and is known to yield a very efficient sorting algorithm in sequential processing. Numerous sorting and merging techniques have(More)
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