Tritoqualine |
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| AHFS/Drugs.com | International Drug Names |
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7-amino-4,5,6-triethoxy-3-(4-methoxy-6-methyl-7,8-dihydro-5H-[1,3]dioxolo[4,5-g]isoquinolin-5-yl)-3H-isobenzofuran-1-one
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| CompTox Dashboard (EPA) | |
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| Formula | C26H32N2O8 |
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| Molar mass | 500.548 g·mol−1 |
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| 3D model (JSmol) | |
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CCOC1=C(C(=C(C2=C1C(OC2=O)C3C4=C(C5=C(C=C4CCN3C)OCO5)OC)N)OCC)OCC
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Tritoqualine, also known as hypostamine, is an inhibitor of the enzyme histidine decarboxylase and therefore an atypical antihistamine, used for the treatment of urticaria and allergic rhinitis[1] with no known adverse effects.
References
- ^ Pradalier A, Hentschel V, Prouzeau S, Legallais D, Lefrancois G (April 2003). "Randomized, placebo controlled study of tritoqualine (hypostamine*) in the treatment of perennial allergic rhinitis". Revue Française d'Allergologie et d'Immunologie Clinique. 43 (3): 175–9. doi:10.1016/S0335-7457(03)00047-9.
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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 |
- Substrates→Products: Phenylalanine→Tyrosine
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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 |
- Substrates→Products: Tryptophan→5-HTP
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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 |
- Substrates→Products: L-Histidine→Histamine
- Inhibitors: Catechin
- Alpha-Fluoromethylhistidine
- Histidine methyl ester
- Meciadanol
- Naringenin
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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 |