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(-)-2β-(3-(4-Methylphenyl)isoxazol-5-yl)-3β-(4-chlorophenyl)tropane
RTI-336, (LS-193,309, (−)-2β-(3-(4-methylphenyl)isoxazol-5-yl)-3β-(4-chlorophenyl)tropane) is a phenyltropane derivative which acts as a potent and selective dopamine reuptake inhibitor and stimulant drug. It binds to the dopamine transporter with around 20x the affinity of cocaine, however it produces relatively mild stimulant effects, with a slow onset and long duration of action. These characteristics make it a potential candidate for treatment of cocaine addiction, as a possible substitute drug analogous to how methadone is used for treating heroin abuse.〔Sofuoglu M, Kosten TR. Emerging pharmacological strategies in the fight against cocaine addiction. ''Expert Opinion on Emerging Drugs''. 2006 Mar;11(1):91-98. 〕 RTI-336 fully substitutes for cocaine in addicted monkeys and supports self-administration, and significantly reduces rates of cocaine use, especially when combined with SSRIs, and research is ongoing to determine whether it could be a viable substitute drug in human cocaine addicts. ==Update== (Lower reinforcing strength of the phenyltropane cocaine analogs RTI-336 and RTI-177 compared to cocaine in nonhuman primates. ) (Influence of chronic dopamine transporter inhibition by RTI-336 on motor behavior, sleep and hormone levels in rhesus monkeys. )
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