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Other names | RDS3-094 |
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Formula | C24H32F2N2OS |
Molar mass | 434.59 g·mol−1 |
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RDS03-94, or RDS3-094, is an atypical dopamine reuptake inhibitor that was derived from the wakefulness-promoting agent modafinil. [1] [2] [3] [4]
It has substantially higher affinity and potency in terms of dopamine transporter (DAT) inhibition than modafinil (Ki = 39.4 nM vs. 8,160 nM) whilst retaining the atypical DAT blocker profile of modafinil. [1] [2] However, RDS03-94 also has high affinity for the sigma σ1 receptor (Ki = 2.19 nM). [2]
RDS03-94 shows some reversal of tetrabenazine-induced motivational deficits in animals and hence may have the capacity to produce pro-motivational effects. [5] [6] However, it appears to be less effective than certain other related agents, like JJC8-088. [6] [5]
RDS03-94 is under development for the treatment of psychostimulant use disorder. [1] The drug was first described in the scientific literature in 2020. [1] [2]
More recently, by introducing the 2,6-dimethyl substitution on the piperazine ring, some improvement in drug-like properties was realized with RDS03-94 [29]. Nevertheless, the piperazine ring remained a metabolically labile functional group and hence a new series of analogues in which it was replaced with an amino-piperidine function was prepared [30]. These new analogues demonstrated superior metabolic stability and are currently being evaluated in rodent models of [psychostimulant use disorder (PSUD)]. In addition, novel heterocyclic-based analogues that may also be promising new leads for PSUD therapeutics have recently been reported [31,32].