Structure-Activity Relationship Studies on a Series of 3α-[Bis(4-fluorophenyl)methoxy]tropanes and 3α-[Bis(4-fluorophenyl)methylamino]tropanes As Novel Atypical Dopamine Transporter (DAT) Inhibitors for the Treatment of Cocaine Use Disorders

Mu Fa Zou, Jianjing Cao, Ara M. Abramyan, Theresa Kopajtic, Claudio Zanettini, Daryl A. Guthrie, Rana Rais, Barbara S. Slusher, Lei Shi, Claus J. Loland, Amy Hauck Newman*

*Corresponding author for this work
7 Citations (Scopus)

Abstract

The development of medications to treat cocaine use disorders has thus far defied success, leaving this patient population without pharmacotherapeutic options. As the dopamine transporter (DAT) plays a prominent role in the reinforcing effects of cocaine that can lead to addiction, atypical DAT inhibitors have been developed that prevent cocaine from binding to DAT, but they themselves are not cocaine-like. Herein, a series of novel DAT inhibitors were synthesized, and based on its pharmacological profile, the lead compound 10a was evaluated in phase I metabolic stability studies in mouse liver microsomes and compared to cocaine in locomotor activity and drug discrimination paradigms in mice. A molecular dynamic simulation study supported the hypothesis that atypical DAT inhibitors have similar binding poses at DAT in a conformation that differs from that of cocaine. Such differences may ultimately contribute to their unique behavioral profiles and potential for development as cocaine use disorder therapeutics.

Original languageEnglish
JournalJournal of Medicinal Chemistry
Volume60
Issue number24
Pages (from-to)10172-10187
Number of pages16
ISSN0022-2623
DOIs
Publication statusPublished - Dec 2017

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