Flavoxate hydrochloride CAS 3717-88-2

Introduction:Basic information about Flavoxate hydrochloride CAS 3717-88-2, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Flavoxate hydrochloride Basic information

Product Name:Flavoxate hydrochloride
Synonyms:FLAVOMYCINPREMIX;1-piperidineethanol,3-methyl-4-oxo-2-phenyl-4h-1-benzopyran-8-carboxylate,h;2-piperidinoethyl-3-methyl-4-oxo-2-phenyl-4h-1-benzopyran-8-carboxylatehydro;3-methyl-4-oxo-2-phenyl-4h-1-benzopyran-8-carboxylicaci2-piperidinoethyl;bladderon;Urispas;Flavoxate hydrochloride,3-Methyl-4-oxo-2-phenyl-4H-1-benzopyran-8-carboxylic acid 2-(1-piperidinyl)ethyl ester hydrochloride, DW-61, Rec-7-0040;Flavoxate Hydrochloride (200 mg)
CAS:3717-88-2
MF:C24H26ClNO4
MW:427.92
EINECS:223-066-4
Product Categories:Aromatics;Heterocycles;Intermediates & Fine Chemicals;Pharmaceuticals;ACTIVE PHARMACEUTICAL INGREDIENTS;API
Mol File:3717-88-2.mol

Flavoxate hydrochloride Chemical Properties

Melting point 232-234°C
storage temp. Inert atmosphere,Room Temperature
solubility H2O: ~6.6 mg/mL
form solid
color white
Major Applicationpharmaceutical (small molecule)
InChIInChI=1S/C24H25NO4.ClH/c1-17-21(26)19-11-8-12-20(23(19)29-22(17)18-9-4-2-5-10-18)24(27)28-16-15-25-13-6-3-7-14-25;/h2,4-5,8-12H,3,6-7,13-16H2,1H3;1H
InChIKeyXOEVKNFZUQEERE-UHFFFAOYSA-N
SMILESC12OC(=C(C)C(=O)C=1C=CC=C2C(=O)OCCN1CCCCC1)C1C=CC=CC=1.Cl
CAS DataBase Reference3717-88-2(CAS DataBase Reference)

Safety Information

Hazard Codes Xn
Risk Statements 22-36/37/38
Safety Statements 26
WGK Germany 3
RTECS DJ2450000
HS Code 29349990
Storage Class11 - Combustible Solids
Hazard ClassificationsAcute Tox. 4 Oral
STOT SE 3
ToxicityLD50 i.v. in rats: 27.4 mg/kg (Cazzulani)

Flavoxate hydrochloride Usage And Synthesis

Chemical PropertiesFlavoxate hydrochloride is Crystalline Solid
OriginatorUrispas,SKF,US,1971
UsesSmooth muscle relaxant. Used as antispasmodic; in treatment of urinary incontinence.
Pharmaceutical ApplicationsAntispasmodic;Phosphodiesterase inhibitor
DefinitionChEBI: The hydrochloride salt of flavoxate.
Manufacturing ProcessA mixture of 13.3 grams of anhydrous aluminum chloride and 100 ml ofcarbon disulfide is added to 19.4 grams of 2-propionyloxybenzoic acid(prepared from the reaction of propionyl chloride and 2-hydroxybenzoic acid).After an initial evolution of hydrogen chloride, the solvent is removed bydistillation and the mixture is heated at 150° to 160°C for 4 hours. The cooledreaction mixture is treated with ice and hydrochloric acid and the product, 2-hydroxy-3-carboxypropiophenone, is obtained from the oily residue bydistillation in vacuo.
A mixture of 1.9 grams of 2-hydroxy-3-carboxypropiophenone, 5.0 grams ofsodium benzoate and 20.0 grams of benzoic anhydride is heated at 180° to190°C for 6 hours. A solution of 15.0 grams of potassium hydroxide in 50 mlof ethanol and 20 ml of water is added and refluxed for 1 hour. The mixture isevaporated and the residue after addition of water yields 3-methylflavone-8-carboxylic acid.
To a suspension of 12.0 grams of 3-methylflavone-8-carboxylic acid in 200 mlof anhydrous benzene is added 10.0 grams of thionyl chloride. The mixture isrefluxed for 2 hours during which the suspended solid goes into solution. Thesolvent is completely removed by distillation, the residue extracted withbenzene and the extract evaporated to dryness. The product, 3-methylflavone-8-carboxylic acid chloride, is recrystallized from ligroin to givecrystals melting at 155° to 156°C.
To 11.0 grams of 3-methylflavone-8-carboxylic acid chloride dissolved in 150ml of anhydrous benzene is added at room temperature 4.8 grams ofpiperidinoethanol and the mixture refluxed for 2 to 3 hours. The separatedsolid is filtered, washed with benzene and dried. The product, piperidinoethyl3-methylflavone-8-carboxylate hydrochloride is obtained as a colorlesscrystalline solid, MP 232° to 234°C, (from US Patent 2,921,070).
Brand nameUrispas (Ortho-McNeil).
Therapeutic FunctionSpasmolytic
Biological ActivityL-type Ca2+ (Cav1.2) channel inhibitor
Side effectsThe following adverse reactions have been observed, but there are not enough data to support an estimate of their frequency.
Gastrointestinal: Nausea, vomiting, dry mouth.
CNS: Vertigo, headache, mental confusion, especially in the elderly, drowsiness, nervousness.
Hematologic: Leukopenia (one case which was reversible upon discontinuation of the drug).
Cardiovascular: Tachycardia and palpitation.
Allergic: Urticaria and other dermatoses, eosinophilia and hyperpyrexia.
Ophthalmic: Increased ocular tension, blurred vision, disturbance in eye accommodation.
Renal: Dysuria.
Veterinary Drugs and TreatmentsFlovoxate may be considered for treating dogs with detrusor hyperspasticity(hyperactive bladder, urge incontinence).
PharmacologyFlavoxate hydrochloride counteracts smooth muscle spasm of the urinary tract and exerts its effect directly on the muscle. In a single study of 11 normal male subjects, the time to onset of action was 55 minutes. The peak effect was observed at 112 minutes. 57% of the flavoxate hydrochloride was excreted in the urine within 24 hours.

Flavoxate hydrochloride Preparation Products And Raw materials

Raw materialsThionyl chloride-->2-Piperidinoethanol-->Aluminum chloride-->Propionyl chloride-->Salicylic acid-->Benzoic anhydride
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