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Published on: August 6, 2013
A novel photoaffinity ligand for the dopamine transporter based on pyrovalerone
David J Lapinsky1, Shaili Aggarwal, Yurong Huang
1Division of Pharmaceutical Sciences, Duquesne University Mylan School of Pharmacy, 600 Forbes Avenue, Pittsburgh, PA 15282, USA. lapinskyd@duq.edu
Abstract:
Non-tropane-based photoaffinity ligands for the dopamine transporter (DAT) are relatively unexplored in contrast to tropane-based compounds such as cocaine. In order to fill this knowledge gap, a ligand was synthesized in which the aromatic ring of pyrovalerone was substituted with a photoreactive azido group. The analog 1-(4-azido-3-iodophenyl)-2-pyrrolidin-1-yl-pentan-1-one demonstrated appreciable binding affinity for the DAT (K(i)=78+/-18 nM), suggesting the potential utility of a radioiodinated version in structure-function studies of this protein.
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