Docking study, synthesis, and in vitro evaluation of fluoro-MADAM derivatives as SERT ligands for PET imaging

Bioorg Med Chem. 2008 Oct 1;16(19):9050-5. doi: 10.1016/j.bmc.2008.08.002. Epub 2008 Aug 6.

Abstract

In order to predict affinity of new diphenylsulfides for the serotonin transporter (SERT), a molecular modeling model was used to compare potential binding affinity of new compounds with known potent ligands. The aim of this study is to identify a suitable PET radioligand for imaging the SERT, new derivatives, and their precursors for a C-11 or F-18 radiolabeling, were synthesized. Two fluorinated derivatives displayed good in vitro affinity for the SERT (K(i)=14.3+/-1 and 10.1+/-2.7 nM) and good selectivity toward the other monoamine transporters as predicted by the docking study.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms*
  • Benzylamines* / chemical synthesis
  • Carbon Radioisotopes / chemistry
  • Cell Line
  • Diagnostic Imaging / methods*
  • Fluorine Radioisotopes / chemistry*
  • Humans
  • Kidney / cytology
  • Kidney / embryology
  • Kidney / pathology
  • Ligands
  • Membrane Transport Proteins / chemistry
  • Membrane Transport Proteins / metabolism*
  • Positron-Emission Tomography / methods*
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Serotonin Plasma Membrane Transport Proteins / chemistry
  • Serotonin Plasma Membrane Transport Proteins / metabolism*

Substances

  • Benzylamines
  • Carbon Radioisotopes
  • Fluorine Radioisotopes
  • Ligands
  • Membrane Transport Proteins
  • N,N-dimethyl-2-(2-amino-4-methylphenylthio)benzylamine
  • Serotonin Plasma Membrane Transport Proteins