214335-16-7Relevant articles and documents
Process development toward the pilot scale synthesis of the piperidine-based cocaine analogue and potent dopamine and norepinephrine reuptake inhibitor CTDP 31,446
Mobele, Bingidimi I.,Kinahan, Taryn,Ulysse, Luckner G.,Gagnier, Steven V.,Ironside, Michael D.,Knox, Graham S.,Mohammadi, Farahnaz
, p. 914 - 920 (2012/12/23)
(+)-Methyl 4β-(4-chlorophenyl)-1-methylpiperidine-3α-carboxylate hydrochloride (CTDP 31,446) is known as a dopamine reuptake inhibitor. This cocaine analogue lacking the tropane skeleton is being considered for potential treatment of cocaine addiction. Herein we report the development of a scalable process for the preparation of this compound. This study was mainly aimed at improving the process throughput, eliminating chromatographic purifications for the separation of (±)-6-cis isomer from (±)-6-trans isomer, and developing a robust crystallization for isolation of pure (±)-6-cis in a single crop with a good mass recovery. The process development work also highlights an efficient recycle of (±)-6-trans via a kinetic epimerization followed by crystallization of the resulting (±)-6-cis isomer. The resolution of (±)-6-cis and the crystallization of the final HCl salt were optimized and implemented to afford CTDP-31,446 with high purity and good mass recovery.
Analogs of cocaine
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, (2008/06/13)
The invention provides a compound of formula (I): STR1wherein R 1, R 2, R 3, and Y have any of the meanings defined in the specification; as well a pharmaceutical composition comprising a compound of formula I; intermediates and methods useful for preparing a compound of formula I; and therapeutic methods for treating drug addiction, Parkinson''s disease or depression comprising administering a compound of formula I, to a mammal in need of such treatment.