Discovery, synthesis, and bioactivity of bis(heteroaryl)piperazines. 1. A novel class of non-nucleoside HIV-1 reverse transcriptase inhibitors

J Med Chem. 1994 Apr 1;37(7):999-1014. doi: 10.1021/jm00033a018.

Abstract

A variety of analogues of 1-[4-methoxy-3,5-dimethylbenzyl]-4-[3-(ethylamino)-2-pyridyl]piperazine hydrochloride (U-80493E) were synthesized and evaluated for their inhibition of human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT). Replacement of the substituted aryl moiety with various substituted indoles provided bis(heteroaryl)piperazines (BHAPs) that were 10-100-fold more potent than U-80493E. The pyridyl portion of the lead molecule was found to be very sensitive to modifications. Extensive preclinical evaluations of several of these compounds led to the selection of 1-[(5-methoxyindol-2-yl)carbonyl]-4-[3-(ethylamino)-2- pyridyl]piperazine methanesulfonate (U-87201E, atevirdine mesylate) for clinical evaluation.

MeSH terms

  • Aminopyridines / chemistry
  • Aminopyridines / pharmacology
  • Antiviral Agents / chemical synthesis*
  • Antiviral Agents / pharmacology
  • Cells, Cultured
  • HIV Reverse Transcriptase
  • HIV-1 / enzymology*
  • Humans
  • Molecular Structure
  • Piperazines / chemical synthesis*
  • Piperazines / chemistry
  • Piperazines / pharmacology
  • Reverse Transcriptase Inhibitors*

Substances

  • Aminopyridines
  • Antiviral Agents
  • Piperazines
  • Reverse Transcriptase Inhibitors
  • 1-(4-methoxy-3,5-dimethylbenzyl)-4-(3-(ethylamino)-2-pyridyl)piperazine hydrochloride
  • HIV Reverse Transcriptase
  • atevirdine