Bepotastine
Grundinformationen
- CAS
125602-71-3- Standard-SMILES
O=C(O)CCCN1CCC(O[C@@H](c2ccc(Cl)cc2)c2ccccn2)CC1- InChIKey
YWGDOWXRIALTES-NRFANRHFSA-N- Summenformel
- C21H25ClN2O3
- Durchschnittliche Molmasse
- 388,9 g/mol
- Monoisotopische Masse
- 388,15537034
Überblick
Bepotastine is an ether that is (S)-(4-chlorophenyl)(pyridin-2-yl)methanol in which the hydroxyl hydrogen is substituted by a 1-(3-carboxypropyl)piperidin-4-yl group. A topical, selective and non-sedating histamine (H1) receptor antagonist used (as its benzenesulfonate salt) for treatment of itching associated with allergic conjunctivitis. It has a role as a H1-receptor antagonist and an anti-allergic agent. It is a monocarboxylic acid, an ether, a member of piperidines, a member of pyridines and a member of monochlorobenzenes. It is a conjugate base of a bepotastine(1+).
Namen und Bezeichner
- Bevorzugter Name
- Bepotastine
- IUPAC
- 4-[4-[(S)-(4-chlorophenyl)-pyridin-2-ylmethoxy]piperidin-1-yl]butanoic acid
- Englischer Name
- BEPOTASTINE
- Summenformel
- C21H25ClN2O3
- Molmasse
- 388.89
Namen und Synonyme
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Datenbank-Bezeichner
- CAS
125602-71-3- PubChem CID
- 164522
- DTXSID
DTXSID90904947- ChEMBL
CHEMBL1201758- ChEBI
CHEBI:71204- UNII
- HYD2U48IAS
- Nikkaji
- J824.035C
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 1
- Polarare Oberfläche (TPSA)
- 62,7 Ų
- H-Brücken-Donoren
- 1
- H-Brücken-Akzeptoren
- 5
- Frei drehbare Bindungen
- 8
- Schwere Atome
- 27
- Formalladung
- 0
- Komplexität
- 449
Experimentelle und physikochemische Eigenschaften
Physikochemische Eigenschaften
- Schmelzpunkt
- 56 · 56 - 58°C
- Siedepunkt
- 546.8 · 546.8±50.0 °C(Predicted)
- Dichte
- 1.26 · 1.26
- storage temp.
- -20 °C · -20°C Freezer, Under inert atmosphere
- Löslichkeit
- DMSO (Slightly), Methanol (Slightly)
- pka
- 4.44 · 4.44±0.10(Predicted)
- Aggregatzustand
- Solid
- Farbe
- White to Pale Beige
- InChIKey
- YWGDOWXRIALTES-NRFANRHFSA-N
- SMILES
- [C@@H](C1N=CC=CC=1)(C1C=CC(=CC=1)Cl)OC1CCN(CC1)CCCC(=O)O
Sicherheit und Regulatorisches
Toxikologische Informationen
Exposure Routes
Oral, Ophthalmic. Tmax, after single dose, opthalmic = 1.2 hours; Cmax, 1.5%, opthalmic dose = 7.3 ± 1.9 ng/mL; After 24 hours post-installation, levels of bepotastine are below quantifiable limit of 2 ng/mL. Minimal systemic absorption with opthalmic dosage form.
Toxicity Summary
Because of a type 1 hypersensitivity reaction cascade that is triggered by antigen exposure, allergic conjunctivitis occurs. Allergen exposure is followed by conjunctival mast cell degranulation and histamine released as a result of the formation of complementary IgE cross-links on the conjunctiva. Due to the release of histamine, symptoms such as itching can be observed. Bepotastine works to relieve itchy eyes by three primary mechanisms of action. It is a non-sedating, selective antagonist of the histamine 1 (H1) receptor, a mast cell stabilizer, and it suppresses the migration of eosinophils into inflamed tissues to prevent tissue damage and worsening of allergic inflammation of the conjunctiva.
Chemie und Industrie
Pharmakologische Informationen
Pharmacodynamics
Bepotastine is a non-sedating, selective antagonist of the histamine 1 (H1) receptor. It belongs to the second-generation piperidine chemical class. It is a mast cell stabilizer and suppresses the migration of eosinophils into inflamed tissues. Furthermore, bepotastine does not interact with serotonin, muscarinic, benzodiazepine, and beta-adrenergic receptor that would otherwise result in adverse reactions such as dry mouth or sonmolence. Onset of action = 0.25 hours; Duration of action = 12-24 hours;
Mechanism of Action
Because of a type 1 hypersensitivity reaction cascade that is triggered by antigen exposure, allergic conjunctivitis occurs. Allergen exposure is followed by conjunctival mast cell degranulation and histamine released as a result of the formation of complementary IgE cross-links on the conjunctiva. Due to the release of histamine, symptoms such as itching can be observed. Bepotastine works to relieve itchy eyes by three primary mechanisms of action. It is a non-sedating, selective antagonist of the histamine 1 (H1) receptor, a mast cell stabilizer, and it suppresses the migration of eosinophils into inflamed tissues to prevent tissue damage and worsening of allergic inflammation of the conjunctiva.
Metabolism/Metabolites
Minimal metabolism via CYP enzymes
Minimal metabolism via CYP enzymes Route of Elimination: When a oral dose of 2.5 - 40 mg bepotastine is given, 75%-90% of the dose was excreted unchanged in the urine by 24 hours. Half Life: Elimination half life = 2.5 hours
FDA Pharmacological Classification
HYD2U48IAS
BEPOTASTINE
Established Pharmacologic Class [EPC] - Histamine-1 Receptor Antagonist
Bepotastine is a Histamine-1 Receptor Antagonist.
Absorption, Distribution and Excretion
Tmax, after single dose, opthalmic = 1.2 hours; Cmax, 1.5%, opthalmic dose = 7.3 ±1.9 ng/mL; After 24 hours post-installation, levels of bepotastine are below quantifiable limit of 2 ng/mL. Minimal systemic absorption with opthalmic dosage form.
When a oral dose of 2.5 - 40 mg bepotastine is given, 75%-90% of the dose was excreted unchanged in the urine by 24 hours.
Verwendung und Herstellung
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Ergänzende Hinweise
DefinitionChEBI: An ether that is (S)-(4-chlorophenyl)(pyridin-2-yl)methanol in which the hydroxyl hydrogen is substituted by a 1-(3-carboxypropyl)piperidin-4-yl group. A topical, selective and non-sedating histamine (H1) receptor anta onist used (as its benzenesulfonate salt) for treatment of itching associated with allergic conjunctivitis.
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