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Darifenacin

Product Name
Darifenacin
CAS No.
133099-04-4
Chemical Name
Darifenacin
Synonyms
CS-773;UK88525;UK-88525;UK 88525;DARIFENACIN;Darifenacin, >=98%;Darifenacin USP/EP/BP;Tolafentrine Impurity 16;2-{(3S)-1-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]pyrrolidin-3-yl}-2,2-dip;2-{(3S)-1-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]pyrrolidin-3-yl}-2,2-diphe
CBNumber
CB1506695
Molecular Formula
C28H30N2O2
Formula Weight
426.55
MOL File
133099-04-4.mol
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Darifenacin Property

alpha 
25D -20.6° (c = 1.0 in methylene chloride)
Boiling point:
614.3±55.0 °C(Predicted)
Density 
1.192±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
solubility 
Soluble in DMSO
form 
Powder
pka
pKa (25°): 9.2
color 
White to off-white
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

ChemScene
Product number
CS-1168
Product name
Darifenacin
Packaging
5mg
Price
$80
Updated
2021/12/16
Matrix Scientific
Product number
093128
Product name
2-(1-(2-(2,3-Dihydrobenzofuran-5-yl)ethyl)-pyrrolidin-3-yl)-2,2-diphenylacetamide
Purity
95+%
Packaging
250mg
Price
$567
Updated
2021/12/16
Biorbyt Ltd
Product number
orb146146
Product name
Darifenacin
Purity
>98%
Packaging
100mg
Price
$578
Updated
2021/12/16
Medical Isotopes, Inc.
Product number
D33903
Product name
Darifenacin-d4
Packaging
1mg
Price
$640
Updated
2021/12/16
AK Scientific
Product number
Q569
Product name
Darifenacin
Packaging
250mg
Price
$815
Updated
2021/12/16
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Darifenacin Chemical Properties,Usage,Production

Description

Darifenacin is a novel muscarinic M3 selective antagonist for the once-daily oral treatment of urinary incontinence and overactive bladder. The majority of overactive bladder symptoms are thought to result from the overactivity of the detrusor muscle, which is primarily mediated by acetylcholine-induced stimulation of muscarinic M3 receptors in the bladder. Consequently, antimuscarinic agents have become the mainstay of overactive bladder treatment. Darifenacin has a higher level of M3 selectivity than the previously marketed antimuscarinic agents. It has Ki values of 16nM for M1, 50 nM for M2, and 1.6 nM for M3 receptors. It is slightly more M3 selective than solifenacin (M1:Ki=25 nM, M2:Ki=126 nM, M3:Ki=10 nM), which was launched in 2004. Darifenacin is significantly more selective than other muscarinics such as tolterodine, oxybutynin, and trospium, which are all essentially equipotent against M1, M2, and M3 receptors. In addition,darifenacin demonstrates greater effect on tissues in which the predominant receptor type is M3 rather than M1 or M2. In vitro darifenacin inhibits carbacholinduced contractions with greater potency in isolated guinea-pig bladder (M3) than in guinea-pig atria (M2) or dog saphenous vein (M1). In animal models, it shows greater selectivity for inhibition of detrusor contraction over salivation or tachycardia.Darifenacin is supplied as a controlled release formulation, and the recommended dosage is 7.5 mg once, daily. Darifenacin is rapidly and completely absorbed from the GI tract after oral administration, with maximum plasma levels achieved after about 7 h. The elimination half-life is approximately 3 h, but because of the controlled release characteristics of the formulation, the drug is suitable for once-daily dosing. Steady-state plasma levels are achieved within 6 days of commencing treatment. Darifenacin exhibits high-protein binding (98%), a volume of distribution of 163 L, and a clearance of 40 L/h. It has low oral bioavailability (15–19%) due to extensive first-pass metabolism by CYP3A4 and CYP2D6, but this can be saturated after multiple administrations. The major circulating metabolites are produced by monohydroxylation and N-dealkylation; however, none contribute significantly to the overall clinical effect of darifenacin. Approximately 58% of the dose is excreted in urine and 44% in feces; only a small percentage (3%) of the excreted dose is unchanged darifenacin.

Originator

Pfizer (US)

Uses

Treatment for an overactive bladder.

Definition

ChEBI: 2-[(3S)-1-Ethylpyrrolidin-3-yl]-2,2-diphenylacetamide in which one of the hydrogens at the 2-position of the ethyl group is substituted by a 2,3-dihydro-1-benzofuran-5-yl group. It is a selective antagonist for the M3 muscarinic acetylcholine receptor, which is primarily responsible for bladder muscle contractions, and is used as the hydrobromide salt in the management of urinary incontinence.

brand name

Enablex (Novartis);Emselex.

Clinical Use

Symptomatic treatment of urinary incontinence,
frequency or urgency

Drug interactions

Potentially hazardous interactions with other drugs
Anti-arrhythmics: increased risk of antimuscarinic side effects with disopyramide
Antifungals: concentration increased by ketoconazole - avoid; avoid with itraconazole.
Antivirals: avoid with fosamprenavir, atazanavir, indinavir, lopinavir, ritonavir, saquinavir and tipranavir.
Calcium-channel blockers: avoid with verapamil
Ciclosporin: avoid concomitant use.

Metabolism

After an oral dose, darifenacin is subject to extensive first-pass metabolism and has a bioavailability of about 15-19%. Darifenacin is metabolised in the liver by the cytochrome P450 isoenzymes CYP2D6 and CYP3A4. Most of a dose is excreted as metabolites in the urine and faeces.

Darifenacin Preparation Products And Raw materials

Raw materials

Preparation Products

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Darifenacin Suppliers

ecochem international chemical broker
Tel
--
Fax
--
Email
export@ecochem.dk
Country
Europe
ProdList
6371
Advantage
66
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View Lastest Price from Darifenacin manufacturers

Hebei Mingeng Biotechnology Co., Ltd
Product
Darifenacin 133099-04-4
Price
US $200.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000kg/Month
Release date
2022-11-27
Shijiazhuang Gantuo Biotechnology Co., Ltd
Product
Darifenacin 133099-04-4
Price
US $100.00/mg
Min. Order
10mg
Purity
99%
Supply Ability
1000g
Release date
2023-03-10
Hong Kong Tiansheng New Material Trading Co., Ltd
Product
Darifenacin 133099-04-4
Price
US $25.99/KG
Min. Order
1KG
Purity
99%
Supply Ability
100KG
Release date
2021-12-28

133099-04-4, DarifenacinRelated Search:


  • CS-773
  • 2-(1-(2-(2,3-Dihydrobenzofuran-5-yl)ethyl)pyrrolidin-3-yl)-2,2-diphenylacetaMide
  • UK 88525
  • UK88525
  • UK-88525
  • 2-{(3S)-1-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]pyrrolidin-3-yl}-2,2-dip
  • Darifenacin, >=98%
  • DARIFENACIN
  • 2-[1-[2-(2,3-Dihydro-1-benzofuran-5-yl)ethyl]pyrrolidin-3-yl]-2,2-di(phenyl)acetamide
  • (3S)-1-[2-(2,3-Dihydro-5-benzofuranyl)ethyl]-α,α-diphenyl-3-pyrrolidineacetamide
  • 2-{(3S)-1-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]pyrrolidin-3-yl}-2,2-dipheny
  • 2-{(3S)-1-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]pyrrolidin-3-yl}-2,2-diphe
  • 3-Pyrrolidineacetamide, 1-[2-(2,3-dihydro-5-benzofuranyl)ethyl]-α,α-diphenyl-, (3S)-
  • Darifenacin USP/EP/BP
  • (3S)-1-[2-(2,3-Dihydro-5-benzofuranyl)ethyl]-α-α-diphenyl-3-pyrrolidineacetamide Hydrobromide
  • Tolafentrine Impurity 16
  • 133099-04-4
  • Pharmaceutical material and intermeidates
  • API