Toloxatone (Humoryl) is an antidepressant launched in 1984 in France by Sanofi Aventis for the treatment of depression. It was discontinued in 2002.[1] It acts as a selective reversible inhibitor of MAO-A (RIMA).[2] 
 Synthesis
  
The reaction between glycidol (1) and m-toluidine (2) gives 3-m-toluidinopropane-1,2-diol (3). Treatment with diethyl carbonate (4) in the presence of sodium methoxide leads to an intermolecular cycloaddition to give tomoxatone.[3][4][5] 
 See also
  References
   - ^ "Humoryl 200mg gelule 30". 
- ^ Berlin I, Zimmer R, Thiede HM, et al. (December 1990). "Comparison of the monoamine oxidase inhibiting properties of two reversible and selective monoamine oxidase-A inhibitors moclobemide and toloxatone, and assessment of their effect on psychometric performance in healthy subjects". British Journal of Clinical Pharmacology. 30 (6): 805–16. doi:10.1111/j.1365-2125.1990.tb05445.x. PMC 1368300. PMID 1705137. 
- ^ Sungurbey, K .; Castaer, J .; Toloxatone. Drugs Fut 1976, 1, 12, 569. 
- ^ Douzon, C.; Fauvan, C.; Une nouvelle serie d'antidpresseurs: les derivs de l'hydroxymthyl-5-oxazolidinone-2. Chimie Thrapeutique 1973, 3, 324-327. 
- ^ DE2012120 Claude P Fauran, Guy M Raynaud, Rene A Oliver, Colette A Douzon, U.S. patent 3,655,687 (1972 to Delalande Sa). 
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 | NRIsTooltip Norepinephrine reuptake inhibitors |  | 
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 | NDRIsTooltip Norepinephrine–dopamine reuptake inhibitors |  | 
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 | NaSSAsTooltip Noradrenergic and specific serotonergic antidepressants |  | 
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 | SMSTooltip Serotonin modulator and stimulators |  | 
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 | TeCAsTooltip Tetracyclic antidepressants |  | 
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 | MAOATooltip Monoamine oxidase A-selective |  | 
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 | MAOBTooltip Monoamine oxidase B-selective |  | 
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| 5-HT1ARTooltip 5-HT1A receptor agonists |  | 
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| GABAARTooltip GABAA receptor PAMsTooltip positive allosteric modulators |  | 
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| Gabapentinoids (α2δ VDCC blockers)
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| Sympatholytics (Antiadrenergics)
 |  Alpha-1 blockers (e.g., prazosin)Alpha-2 agonists (e.g., clonidine, dexmedetomidine, guanfacine)Beta blockers (e.g., propranolol, atenolol, betaxolol, nadolol, oxprenolol, pindolol)
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| Non-specific | | AAADTooltip Aromatic L-amino acid decarboxylase |  | 
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| Phenethylamines (dopamine, epinephrine,
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 | THTooltip Tyrosine hydroxylase |  | 
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 | DBHTooltip Dopamine beta-hydroxylase |  | 
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 | PNMTTooltip Phenylethanolamine N-methyltransferase |   Inhibitors: CGS-19281ASKF-64139SKF-7698
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 | COMTTooltip Catechol-O-methyl transferase |  | 
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| Tryptamines (serotonin, melatonin)
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 | AANATTooltip Serotonin N-acetyl transferase |  | 
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 | ASMTTooltip Acetylserotonin O-methyltransferase |  | 
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| Histamine | | HDCTooltip Histidine decarboxylase |  | 
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 | HNMTTooltip Histamine N-methyltransferase |  Substrates→Products: Histamine→N-Methylhistamine
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 | DAOTooltip Diamine oxidase |  Substrates→Products: Histamine→Imidazole acetic acid
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| See also: Receptor/signaling modulators • Adrenergics • Dopaminergics • Melatonergics • Serotonergics • Monoamine reuptake inhibitors • Monoamine releasing agents • Monoamine neurotoxins |