Structural-based design and synthesis of novel 9-deazaguanine derivatives having a phosphate mimic as multi-substrate analogue inhibitors for mammalian PNPs

Bioorg Med Chem. 2010 Mar 15;18(6):2275-2284. doi: 10.1016/j.bmc.2010.01.062. Epub 2010 Feb 4.

Abstract

9-(5',5'-Difluoro-5'-phosphonopentyl)-9-deazaguanine (DFPP-DG) was designed as a multi-substrate analogue inhibitor against purine nucleoside phosphorylase (PNP) on the basis of X-ray crystallographic data obtained for a binary complex of 9-(5',5'-difluoro-5'-phosphonopentyl)guanine (DFPP-G) with calf-spleen PNP. DFPP-DG and its analogous compounds were synthesized by the Sonogashira coupling reaction between a 9-deaza-9-iodoguanine derivative and omega-alkynyldifluoromethylene phosphonates as a key reaction. The experimental details focused on the synthetic chemistry along with some insights into the physical and biological properties of newly synthesized DFPP-DG derivatives are disclosed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cattle
  • Crystallography, X-Ray
  • Dose-Response Relationship, Drug
  • Drug Design*
  • Enzyme Inhibitors / chemical synthesis*
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • Erythrocytes / enzymology
  • Guanine / analogs & derivatives*
  • Guanine / chemical synthesis
  • Guanine / chemistry
  • Guanine / pharmacology
  • Humans
  • Hydrogen-Ion Concentration
  • Kinetics
  • Models, Molecular
  • Molecular Structure
  • Organophosphonates / chemical synthesis*
  • Organophosphonates / chemistry
  • Organophosphonates / pharmacology*
  • Purine-Nucleoside Phosphorylase / antagonists & inhibitors*
  • Purine-Nucleoside Phosphorylase / chemistry
  • Purine-Nucleoside Phosphorylase / metabolism
  • Spleen / enzymology
  • Stereoisomerism
  • Structure-Activity Relationship
  • Time Factors

Substances

  • 9-(5',5'-difluoro-5'-phosphonopentyl)-9-deazaguanine
  • Enzyme Inhibitors
  • Organophosphonates
  • Guanine
  • Purine-Nucleoside Phosphorylase