Design, synthesis and in vitro trypanocidal and leishmanicidal activities of novel semicarbazone derivatives

Eur J Med Chem. 2015 Jul 15:100:24-33. doi: 10.1016/j.ejmech.2015.05.046. Epub 2015 Jun 2.

Abstract

Trypanosomatids are protozoan parasites that cause various diseases in human, such as leishmaniasis, Chagas disease and sleeping sickness. The highly syntenic genomes of the trypanosomatid species lead the assumption that they can encode similar proteins, indicating the possibility to design new antitrypanosomatid drugs with dual trypanosomicidal and leishmanicidal activities. In this work a series of compounds (6a-h and 7a-h), containing a semicarbazone scaffold as a peptide mimetic framework, was designed and synthesized. From this series compound 7g (LASSBio-1483) highlighted, showing dual in vitro trypanosomicidal and leishmanicidal activities, with potency similar to the standard drugs nifurtimox and pentamidine. This data, taken together with its good in silico druglikeness profile and its great chemical and plasma stability, make LASSBio-1483 (7g) a new antitrypanosomatid lead-candidate.

Keywords: Leishmaniasis; Neglected diseases; Peptide mimetic; Protease; Semicarbazone; Trypanosomiasis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antiprotozoal Agents / chemical synthesis
  • Antiprotozoal Agents / chemistry
  • Antiprotozoal Agents / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Design*
  • Leishmania major / drug effects*
  • Leishmania major / growth & development
  • Models, Molecular
  • Molecular Conformation
  • Parasitic Sensitivity Tests
  • Semicarbazones / chemical synthesis
  • Semicarbazones / chemistry
  • Semicarbazones / pharmacology*
  • Structure-Activity Relationship
  • Trypanosoma cruzi / drug effects*

Substances

  • Antiprotozoal Agents
  • Semicarbazones