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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| SSRIsTooltip Selective serotonin reuptake inhibitors | |
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| SNRIsTooltip Serotonin–norepinephrine reuptake inhibitors | |
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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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| SARIsTooltip Serotonin antagonist and reuptake inhibitors | |
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| SMSTooltip Serotonin modulator and stimulators | |
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| Others | |
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| TCAsTooltip Tricyclic antidepressants | |
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| TeCAsTooltip Tetracyclic antidepressants | |
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| Others | |
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| Non-selective | |
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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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| Antidepressants | |
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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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| Others | |
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| Non-specific | | AAADTooltip Aromatic L-amino acid decarboxylase | |
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| MAOTooltip Monoamine oxidase | |
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Phenethylamines (dopamine, epinephrine, norepinephrine) | | PAHTooltip Phenylalanine hydroxylase | |
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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-19281A
- SKF-64139
- SKF-7698
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| COMTTooltip Catechol-O-methyl transferase | |
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Tryptamines (serotonin, melatonin) | | TPHTooltip Tryptophan hydroxylase | |
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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 |