93008-41-4Relevant academic research and scientific papers
Palladium-Catalyzed C-O Cross-Coupling of Primary Alcohols
Zhang, Hong,Ruiz-Castillo, Paula,Buchwald, Stephen L.
supporting information, p. 1580 - 1583 (2018/03/23)
Two catalyst systems are described, which together provide mild and general conditions for the Pd-catalyzed C-O cross-coupling of primary alcohols. For activated substrates, such as electron-deficient aryl halides, the commercially available ligand L2 promotes efficient coupling for a variety of alcohol nucleophiles. In the case of unactivated electrophiles, such as electron-rich aryl halides, the new ligand L8 was developed to improve these challenging C-O bond-forming reactions.
ICI 56,780 optimization: Structure-activity relationship studies of 7-(2-phenoxyethoxy)-4(1H)-quinolones with antimalarial activity
Maignan, Jordany R.,Lichorowic, Cynthia L.,Giarrusso, James,Blake, Lynn D.,Casandra, Debora,Mutka, Tina S.,LaCrue, Alexis N.,Burrows, Jeremy N.,Willis, Paul A.,Kyle, Dennis E.,Manetsch, Roman
, p. 6943 - 6960 (2016/08/05)
Though malaria mortality rates are down 48% globally since 2000, reported occurrences of resistance against current therapeutics threaten to reverse that progress. Recently, antimalarials that were once considered unsuitable therapeutic agents have been revisited to improve physicochemical properties and efficacy required for selection as a drug candidate. One such compound is 4(1H)-quinolone ICI 56,780, which is known to be a causal prophylactic that also displays blood schizonticidal activity against P. berghei. Rapid induction of parasite resistance, however, stalled its further development. We have completed a full structure-activity relationship study on 4(1H)-quinolones, focusing on the reduction of cross-resistance with atovaquone for activity against the clinical isolates W2 and TM90-C2B, as well as the improvement of microsomal stability. These studies revealed several frontrunner compounds with superb in vivo antimalarial activity. The best compounds were found to be curative with all mice surviving a Plasmodium berghei infection after 30 days.
