The reported toxicities of current antitrypanosomal drugs and the emergence of drug resistant trypanosomes underscore the need for the development of new antitrypanosomal agents. We report herein the synthesis and antitrypanosomal activity of 24 new amide derivatives of 3-aminoquinoline, bearing substituted benzenesulphonamide. Nine of the new derivatives showed comparable antitrypanosomal activities at IC50 range of 1-6 nM (melarsoprol 5 nM). Compound 11n and 11v are more promising antitrypanosomal agents with IC50 1.0 nM than the rest of the reported derivatives. The novel compounds showed satisfactory predicted physico-chemical properties including oral bioavailability, permeability and transport properties.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5764481 | PMC |
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0191234 | PLOS |
Chem Biodivers
December 2024
Universidad Nacional de Colombia, Antioquia, carrera 65 59a-110, 3840, Medellín, COLOMBIA.
Coumarin-chalcone hybrids are promising compounds that could be used as lead structures in the fight against parasitic diseases. In this work, sixteen hybrids of coumarin-chalcone (3-cinnamoyl-2H-chromen-2-ones) were synthesized, and their in vitro biological activity was evaluated against intracellular amastigotes of Leishmania braziliensis and Trypanosoma cruzi; as well as their cytotoxicity in the U-937 cell line. Compounds (E)-3-(3-(3-ethoxy-4-hydroxyphenyl)acryloyl)-7-methoxy-2H-chromen-2-one (H25) and (E)-7-(diethylamino)-3-(4-(methoxyphenyl)acryloyl)-2H-chromen-2-one (H12) showed the highest antileishmanial activity with EC50 values of 18.
View Article and Find Full Text PDFPhytochemistry
December 2024
Centre for Natural and Human Sciences, Federal University of ABC, Santo Andre, SP, 09280-560, Brazil. Electronic address:
As part of our continuous study on the Annonaceae species Porcelia macrocarpa, in the present work, eight chemically related 2-alkyl-3-hydroxy-4-methyl-γ-lactones (1-8) were isolated. Their structures were characterised by NMR, MS, and VCD. Their antitrypanosomal activity was evaluated in vitro against intracellular amastigotes with EC values ranged from 13.
View Article and Find Full Text PDFJ Parasitol Res
November 2024
Plant Development Department, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana.
Metabolites
October 2024
Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panamá 0843-01103, Panama.
Background: Collectively, leishmaniasis and Chagas disease cause approximately 8 million cases and more than 40,000 deaths annually, mostly in tropical and subtropical regions. The current drugs used to treat these diseases have limitations and many undesirable side effects; hence, new drugs with better clinical profiles are needed. Fungal endophytes associated with plants are known to produce a wide array of bioactive secondary metabolites, including antiprotozoal compounds.
View Article and Find Full Text PDFChemMedChem
November 2024
Laboratório de Síntese e Química Medicinal (LASQUIM)., Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul (UFMS), Avenida Costa e Silva, s/n, Bairro Universitário, Campo Grande, Mato Grosso do Sul, CEP 79070-900, Brazil.
A series of 2-nitroimidazole-1,2,3-triazole sulfonamide hybrid analogs were designed using medicinal chemistry approaches, such as bioisosterism, molecular hybridization, Topliss tree decision, and Craig plot. A total of 24 compounds were synthesized via click chemistry in satisfactory yields. Overall, analogs 15 a-x exhibited relevant in vitro anti-trypanosomatid activity against amastigote forms of T.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!