Synthesis and amine transporter affinities of novel phenyltropane derivatives as potential positron emission tomography (PET) imaging agents

Bioorg Med Chem Lett. 2004 Nov 15;14(22):5635-9. doi: 10.1016/j.bmcl.2004.08.049.

Abstract

A series of novel fluoroalkyl-containing tropane derivatives (6-8, 10-14, 17, and 18) were synthesized from cocaine. Novel compounds were evaluated for affinity and selectivity in competitive radioligand binding assays selective for cerebral serotonin (5-HT), dopamine (DA), and norepinephrine (NE) transporters (SERT, DAT, and NET). The nortropane-fluoroalkyl esters (7, 10, 11) were most potent for SERT (K(i): 0.18, 0.24, and 0.30 nM, respectively). Tosylate esters 17 and 18, synthesized as precursors for [(18)F]-labeled, Positron Emission Tomography (PET) imaging agents, also showed high affinity for DAT.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Binding, Competitive
  • Biogenic Amines / metabolism
  • Brain / drug effects
  • Brain / metabolism
  • Carrier Proteins / antagonists & inhibitors*
  • Carrier Proteins / metabolism
  • Molecular Structure
  • Positron-Emission Tomography / methods*
  • Radioligand Assay
  • Rats
  • Structure-Activity Relationship
  • Tropanes* / chemical synthesis
  • Tropanes* / chemistry
  • Tropanes* / pharmacology

Substances

  • Biogenic Amines
  • Carrier Proteins
  • Tropanes