Manifaxine (developmental code name GW-320,659) is a norepinephrine–dopamine reuptake inhibitor developed by GlaxoSmithKline through structural modification of radafaxine, an isomer of hydroxybupropion and one of the active metabolites of bupropion.[1] Manifaxine was researched for treatment of attention deficit hyperactivity disorder (ADHD) and obesity and was found to be safe, reasonably effective, and well-tolerated for both applications.[2][3] However, no results were reported following these initial trials and development was discontinued.[1]
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| Other names | GW-320,659 |
| Routes of administration | Oral |
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| Formula | C12H15F2NO2 |
| Molar mass | 243.254 g·mol−1 |
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Synthesis
The Grignard reaction between 3,5-difluorobenzonitrile [64248-63-1] (1) and ethylmagnesium bromide gives 3,5-difluoropropiophenone [135306-45-5] (2). Halogenation with molecular bromine occurs at the alpha-keto position providing 2-bromo-3',5'-difluoropropiophenone [135306-46-6] (3). Intermolecular ring formation with DL-Alaninol (2-Aminopropanol) [6168-72-5] completed the synthesis of Manifaxine (4).
See also
References
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