Investigation of the Optical Isomers of Methcathinone, and Two Achiral Analogs, at Monoamine Transporters and in Intracranial Self-Stimulation Studies in Rats
摘要:
Methcathinone (MCAT; 1), the progenitor of numerous and widely abused "synthetic cathinone" central stimulants, exists as a pair of optical isomers. Although S(-)MCAT is several-fold more potent than R(+)MCAT in rodent locomotor stimulation and in stimulus generalization studies in rat drug discrimination assays, the individual optical isomers of MCAT have never been directly compared for their actions at monoamine transporters that seem to underlie their actions and have never been examined for their relative abuse potential. Here, we found that the isomers of MCAT are nearly equieffective at dopamine and norepinephrine transporters (DAT and NET, respectively) as transporter substrates (i.e., as releasing agents) and are >= 63-fold less potent at the serotonin transporter (SERT). In intracranial self-stimulation (ICSS) studies to evaluate abuse-related drug effects in rats, S(-)MCAT was approximately twice as potent as its R-enantiomer. Achiral analogs, alpha-methyl MCAT (3) and alpha-des-methyl MCAT (4), also were DAT/NET substrates and also produced abuse-related ICSS effects, indicating that they retain abuse potential and that they might be useful for the further study of the stereochemistry of synthetic cathinone analogs with chiral beta- (or other) substituents.
2,2' -DIAMINO BIARYLS WITH TWO SECONDARY AMINES AND PRODUCTION THEREOF BY ELECTROCHEMICAL COUPLING
申请人:DYBALLA Katrin Marie
公开号:US20170298013A1
公开(公告)日:2017-10-19
Novel 2,2′-diamino biaryls of formula (I), (II) and (III), wherein R1-R10, R1′-R10′, X1-X3 and X1-X3′ are defined in claim 1. The invention also relates to an electrochemical method for the production thereof.