Microwave assisted regioselective synthesis of quinoline appended triazoles as potent anti-tubercular and antifungal agents via copper (I) catalyzed cycloaddition

Bioorg Med Chem Lett. 2021 Jun 1:41:127984. doi: 10.1016/j.bmcl.2021.127984. Epub 2021 Mar 22.

Abstract

Quinolin-3-yl-methyl-1,2,3-triazolyl-1,2,4-triazol-3(4H)-ones 8j-v were synthesized by click chemistry as an ultimate tactic where [3 + 2] cycloaddition of azides with terminal alkynes has been evolved. Herein, we are inclined to divulge the implication and prevalence of CuSO4·5H2O and THF/water promoted [3 + 2] cycloaddition reactions. The foremost supremacy of this method are transitory reaction times, facile workup, excellent yields (88-92%) with exorbitant purity and regioselective single product formation both under conventional and microwave method. Docking studies illustrated strong binding interactions with enzyme InhA-D148G (PDB ID: 4DQU) by means of high C-score values. The anti-tubercular and antifungal screening of synthesized compounds proclaimed promising activity. The in vitro and in silico studies imply that these triazoles appended quinolines may acquire the ideal structural prerequisites for auxiliary expansion of novel therapeutic agents.

Keywords: 1,2,4-Triazole,1,2,3-triazole; Anti-tubercular agents; Antifungal agents; Click chemistry; Molecular docking; Quinoline.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antifungal Agents / chemical synthesis
  • Antifungal Agents / chemistry
  • Antifungal Agents / pharmacology*
  • Antitubercular Agents / chemical synthesis
  • Antitubercular Agents / chemistry
  • Antitubercular Agents / pharmacology*
  • Aspergillus / drug effects
  • Candida albicans / drug effects
  • Catalysis
  • Cell Survival / drug effects
  • Copper / chemistry*
  • Cycloaddition Reaction
  • Dose-Response Relationship, Drug
  • HEK293 Cells
  • Humans
  • Microbial Sensitivity Tests
  • Microwaves*
  • Molecular Structure
  • Mycobacterium tuberculosis / drug effects
  • Quinolines / chemistry
  • Quinolines / pharmacology*
  • Stereoisomerism
  • Structure-Activity Relationship
  • Triazoles / chemical synthesis
  • Triazoles / chemistry
  • Triazoles / pharmacology*

Substances

  • Antifungal Agents
  • Antitubercular Agents
  • Quinolines
  • Triazoles
  • Copper
  • quinoline