Manifaxine
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| Other names | GW-320,659 |
| Routes of administration | Oral |
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| Chemical and physical data | |
| Formula | C12H15F2NO2 |
| Molar mass | 243.254 g·mol−1 |
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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]
Synthesis
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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
[edit]References
[edit]- ^ a b "Manifaxine - AdisInsight".
- ^ DeVeaugh-Geiss J, Conners CK, Sarkis EH, Winner PK, Ginsberg LD, Hemphill JM, et al. (August 2002). "GW320659 for the treatment of attention-deficit/hyperactivity disorder in children". Journal of the American Academy of Child and Adolescent Psychiatry. 41 (8): 914–20. doi:10.1097/00004583-200208000-00009. PMID 12162627.
- ^ Spraggs CF, Pillai SG, Dow D, Douglas C, McCarthy L, Manasco PK, et al. (December 2005). "Pharmacogenetics and obesity: common gene variants influence weight loss response of the norepinephrine/dopamine transporter inhibitor GW320659 in obese subjects". Pharmacogenetics and Genomics. 15 (12): 883–9. doi:10.1097/01213011-200512000-00006. PMID 16272960. S2CID 40809351.
- ^ Kelley, J. L., Musso, D. L., Boswell, G. E., Soroko, F. E., Cooper, B. R. (1 January 1996). "(2 S ,3 S ,5 R )-2-(3,5-Difluorophenyl)-3,5- dimethyl-2-morpholinol: A Novel Antidepressant Agent and Selective Inhibitor of Norepinephrine Uptake". Journal of Medicinal Chemistry. 39 (2): 347–349. doi:10.1021/jm950630p. PMID 8558500.
- ^ James Leroy Kelley, et al. EP0426416 (1991 to Wellcome Foundation Ltd).
- ^ Frank Ivy Carroll, et al. US9562001 (2012 to Research Triangle Institute).
- ^ Frank Ivy Carroll, et al. US20180215701 (Research Triangle Institute).
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