Record Information
Version2.0
Creation Date2009-07-30 17:58:49 UTC
Update Date2014-12-24 20:26:07 UTC
Accession NumberT3D3499
Identification
Common NameDarifenacin
ClassSmall Molecule
DescriptionDarifenacin (Enablex™, Novartis) is a medication used to treat urinary incontinence. Darifenacin works by blocking the M3 muscarinic acetylcholine receptor, which is primarily responsible for bladder muscle contractions. It thereby decreases the urgency to urinate. It should not be used in people with urinary retention. It is not known whether this selectivity for the M3 receptor translates into any clinical advantage when treating symptoms of overactive bladder syndrome.
Compound Type
  • Amide
  • Amine
  • Antispasmodic Agent
  • Drug
  • Ether
  • Metabolite
  • Muscarinic Antagonist
  • Organic Compound
  • Synthetic Compound
  • Urinary Antispasmodic
Chemical Structure
Thumb
Synonyms
Synonym
(S)-1-(2-(2,3-dihydro-5-Benzofuranyl)ethyl)-alpha,alpha-diphenyl-3-pyrrolidineacetamide
Darifenacina
Darifénacine
Darifenacinum
Emselex
Enablex
Xelena
Chemical FormulaC28H30N2O2
Average Molecular Mass426.550 g/mol
Monoisotopic Mass426.231 g/mol
CAS Registry Number133099-04-4
IUPAC Name2-[(3S)-1-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]pyrrolidin-3-yl]-2,2-diphenylacetamide
Traditional Namedarifenacin
SMILES[H][C@]1(CCN(CCC2=CC3=C(OCC3)C=C2)C1)C(C(O)=N)(C1=CC=CC=C1)C1=CC=CC=C1
InChI IdentifierInChI=1S/C28H30N2O2/c29-27(31)28(23-7-3-1-4-8-23,24-9-5-2-6-10-24)25-14-17-30(20-25)16-13-21-11-12-26-22(19-21)15-18-32-26/h1-12,19,25H,13-18,20H2,(H2,29,31)/t25-/m1/s1
InChI KeyInChIKey=HXGBXQDTNZMWGS-RUZDIDTESA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as diphenylmethanes. Diphenylmethanes are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassDiphenylmethanes
Direct ParentDiphenylmethanes
Alternative Parents
Substituents
  • Diphenylmethane
  • Phenylacetamide
  • Phenethylamine
  • Coumaran
  • Alkyl aryl ether
  • Aralkylamine
  • N-alkylpyrrolidine
  • Pyrrolidine
  • Amino acid or derivatives
  • Carboxamide group
  • Primary carboxylic acid amide
  • Tertiary amine
  • Tertiary aliphatic amine
  • Ether
  • Carboxylic acid derivative
  • Oxacycle
  • Organoheterocyclic compound
  • Azacycle
  • Organic oxide
  • Organic nitrogen compound
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Amine
  • Carbonyl group
  • Hydrocarbon derivative
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological Roles
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
Solubility2.98e-04 g/L
LogP4.5
Predicted Properties
PropertyValueSource
Water Solubility0.0003 g/LALOGPS
logP4.35ALOGPS
logP4.54ChemAxon
logS-6.2ALOGPS
pKa (Strongest Acidic)16.21ChemAxon
pKa (Strongest Basic)10.11ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area55.56 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity128.37 m³·mol⁻¹ChemAxon
Polarizability48.54 ųChemAxon
Number of Rings5ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00lv-2491000000-40c43db64189724fe0c22017-09-01View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-0101900000-1979d23256753a9835732016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03gj-0756900000-6e69c78743e94527add22016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0uxs-2910000000-ec1acf0e02b7c0a392f32016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0001900000-e8c519b1d7f130de607a2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-4285900000-73144c3d58ba99d765812016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9030000000-5dfb7a1ae0753d3d4c112016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-005c-4005900000-8a58ca84e09117fd29e52021-09-22View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-9004100000-2c811675031a777fbc672021-09-22View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9212000000-514c545cfeaf92ef3a8e2021-09-22View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-0002900000-3905ca525d1dcc4e15f32021-09-22View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-0104900000-359dc4da59d626f0edf42021-09-22View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0002-0932000000-13b487199d725fb1e3572021-09-22View Spectrum
Toxicity Profile
Route of ExposureThe mean oral bioavailability at steady state is estimated to be 15% and 19% for 7.5 mg and 15 mg tablets, respectively.
Mechanism of ToxicityDarifenacin selectively antagonizes the muscarinic M3 receptor. M3 receptors are involved in contraction of human bladder and gastrointestinal smooth muscle, saliva production, and iris sphincter function.
MetabolismHepatic. Primarily mediated by the cytochrome P450 enzymes CYP2D6 and CYP3A4. Half Life: The elimination half-life of darifenacin following chronic dosing is approximately 13-19 hours.
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesFor the treatment of overactive bladder with symptoms of urge urinary incontinence, urgency and frequency.
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsOverdosage can potentially result in severe central anticholinergic effects.
TreatmentNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDDB00496
HMDB IDHMDB14639
PubChem Compound ID444031
ChEMBL IDCHEMBL1346
ChemSpider ID392054
KEGG IDNot Available
UniProt IDNot Available
OMIM ID
ChEBI ID391960
BioCyc IDNot Available
CTD IDNot Available
Stitch IDDarifenacin
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkDarifenacin
References
Synthesis Reference

Valeriano Merli, Augusto Canavesi, Paola Daverio, “Processes for preparing darifenacin hydrobromide.” U.S. Patent US20070197631, issued August 23, 2007.

MSDSNot Available
General ReferencesNot Available
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
G-protein coupled acetylcholine receptor activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is adenylate cyclase inhibition. Signaling promotes phospholipase C activity, leading to the release of inositol trisphosphate (IP3); this then triggers calcium ion release into the cytosol.
Gene Name:
CHRM2
Uniprot ID:
P08172
Molecular Weight:
51714.605 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.047 uMNot AvailableBindingDB 50109647
Inhibitory0.05 uMNot AvailableBindingDB 50109647
References
  1. Jha S, Parsons M: Treatment of overactive bladder in the aging population: focus on darifenacin. Clin Interv Aging. 2006;1(4):309-16. [18046909 ]
  2. Moriya H, Takagi Y, Nakanishi T, Hayashi M, Tani T, Hirotsu I: Affinity profiles of various muscarinic antagonists for cloned human muscarinic acetylcholine receptor (mAChR) subtypes and mAChRs in rat heart and submandibular gland. Life Sci. 1999;64(25):2351-8. [10374898 ]
  3. Hirose H, Aoki I, Kimura T, Fujikawa T, Numazawa T, Sasaki K, Sato A, Hasegawa T, Nishikibe M, Mitsuya M, Ohtake N, Mase T, Noguchi K: Pharmacological properties of (2R)-N-[1-(6-aminopyridin-2-ylmethyl)piperidin-4-yl]-2-[(1R)-3,3-difluorocyclopen tyl]-2-hydroxy-2-phenylacetamide: a novel mucarinic antagonist with M(2)-sparing antagonistic activity. J Pharmacol Exp Ther. 2001 May;297(2):790-7. [11303071 ]
  4. Sagara Y, Sagara T, Mase T, Kimura T, Numazawa T, Fujikawa T, Noguchi K, Ohtake N: Cyclohexylmethylpiperidinyltriphenylpropioamide: a selective muscarinic M(3) antagonist discriminating against the other receptor subtypes. J Med Chem. 2002 Feb 14;45(4):984-7. [11831911 ]
  5. Starck JP, Talaga P, Quere L, Collart P, Christophe B, Lo Brutto P, Jadot S, Chimmanamada D, Zanda M, Wagner A, Mioskowski C, Massingham R, Guyaux M: Potent anti-muscarinic activity in a novel series of quinuclidine derivatives. Bioorg Med Chem Lett. 2006 Jan 15;16(2):373-7. Epub 2005 Nov 3. [16275087 ]
  6. Nelson CP, Gupta P, Napier CM, Nahorski SR, Challiss RA: Functional selectivity of muscarinic receptor antagonists for inhibition of M3-mediated phosphoinositide responses in guinea pig urinary bladder and submandibular salivary gland. J Pharmacol Exp Ther. 2004 Sep;310(3):1255-65. Epub 2004 May 12. [15140916 ]
General Function:
Phosphatidylinositol phospholipase c activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover.
Gene Name:
CHRM1
Uniprot ID:
P11229
Molecular Weight:
51420.375 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.0055 uMNot AvailableBindingDB 50109647
References
  1. Jha S, Parsons M: Treatment of overactive bladder in the aging population: focus on darifenacin. Clin Interv Aging. 2006;1(4):309-16. [18046909 ]
  2. Moriya H, Takagi Y, Nakanishi T, Hayashi M, Tani T, Hirotsu I: Affinity profiles of various muscarinic antagonists for cloned human muscarinic acetylcholine receptor (mAChR) subtypes and mAChRs in rat heart and submandibular gland. Life Sci. 1999;64(25):2351-8. [10374898 ]
  3. Hirose H, Aoki I, Kimura T, Fujikawa T, Numazawa T, Sasaki K, Sato A, Hasegawa T, Nishikibe M, Mitsuya M, Ohtake N, Mase T, Noguchi K: Pharmacological properties of (2R)-N-[1-(6-aminopyridin-2-ylmethyl)piperidin-4-yl]-2-[(1R)-3,3-difluorocyclopen tyl]-2-hydroxy-2-phenylacetamide: a novel mucarinic antagonist with M(2)-sparing antagonistic activity. J Pharmacol Exp Ther. 2001 May;297(2):790-7. [11303071 ]
  4. Sagara Y, Sagara T, Mase T, Kimura T, Numazawa T, Fujikawa T, Noguchi K, Ohtake N: Cyclohexylmethylpiperidinyltriphenylpropioamide: a selective muscarinic M(3) antagonist discriminating against the other receptor subtypes. J Med Chem. 2002 Feb 14;45(4):984-7. [11831911 ]
General Function:
Receptor activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover.
Gene Name:
CHRM3
Uniprot ID:
P20309
Molecular Weight:
66127.445 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.00084 uMNot AvailableBindingDB 50109647
Inhibitory0.0013 uMNot AvailableBindingDB 50109647
References
  1. Hirose H, Aoki I, Kimura T, Fujikawa T, Numazawa T, Sasaki K, Sato A, Hasegawa T, Nishikibe M, Mitsuya M, Ohtake N, Mase T, Noguchi K: Pharmacological properties of (2R)-N-[1-(6-aminopyridin-2-ylmethyl)piperidin-4-yl]-2-[(1R)-3,3-difluorocyclopen tyl]-2-hydroxy-2-phenylacetamide: a novel mucarinic antagonist with M(2)-sparing antagonistic activity. J Pharmacol Exp Ther. 2001 May;297(2):790-7. [11303071 ]
  2. Sagara Y, Sagara T, Mase T, Kimura T, Numazawa T, Fujikawa T, Noguchi K, Ohtake N: Cyclohexylmethylpiperidinyltriphenylpropioamide: a selective muscarinic M(3) antagonist discriminating against the other receptor subtypes. J Med Chem. 2002 Feb 14;45(4):984-7. [11831911 ]
  3. Starck JP, Talaga P, Quere L, Collart P, Christophe B, Lo Brutto P, Jadot S, Chimmanamada D, Zanda M, Wagner A, Mioskowski C, Massingham R, Guyaux M: Potent anti-muscarinic activity in a novel series of quinuclidine derivatives. Bioorg Med Chem Lett. 2006 Jan 15;16(2):373-7. Epub 2005 Nov 3. [16275087 ]
  4. Nelson CP, Gupta P, Napier CM, Nahorski SR, Challiss RA: Functional selectivity of muscarinic receptor antagonists for inhibition of M3-mediated phosphoinositide responses in guinea pig urinary bladder and submandibular salivary gland. J Pharmacol Exp Ther. 2004 Sep;310(3):1255-65. Epub 2004 May 12. [15140916 ]
General Function:
Guanyl-nucleotide exchange factor activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is inhibition of adenylate cyclase.
Gene Name:
CHRM4
Uniprot ID:
P08173
Molecular Weight:
53048.65 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.0086 uMNot AvailableBindingDB 50109647
References
  1. Jha S, Parsons M: Treatment of overactive bladder in the aging population: focus on darifenacin. Clin Interv Aging. 2006;1(4):309-16. [18046909 ]
  2. Moriya H, Takagi Y, Nakanishi T, Hayashi M, Tani T, Hirotsu I: Affinity profiles of various muscarinic antagonists for cloned human muscarinic acetylcholine receptor (mAChR) subtypes and mAChRs in rat heart and submandibular gland. Life Sci. 1999;64(25):2351-8. [10374898 ]
  3. Hirose H, Aoki I, Kimura T, Fujikawa T, Numazawa T, Sasaki K, Sato A, Hasegawa T, Nishikibe M, Mitsuya M, Ohtake N, Mase T, Noguchi K: Pharmacological properties of (2R)-N-[1-(6-aminopyridin-2-ylmethyl)piperidin-4-yl]-2-[(1R)-3,3-difluorocyclopen tyl]-2-hydroxy-2-phenylacetamide: a novel mucarinic antagonist with M(2)-sparing antagonistic activity. J Pharmacol Exp Ther. 2001 May;297(2):790-7. [11303071 ]
  4. Sagara Y, Sagara T, Mase T, Kimura T, Numazawa T, Fujikawa T, Noguchi K, Ohtake N: Cyclohexylmethylpiperidinyltriphenylpropioamide: a selective muscarinic M(3) antagonist discriminating against the other receptor subtypes. J Med Chem. 2002 Feb 14;45(4):984-7. [11831911 ]
General Function:
Phosphatidylinositol phospholipase c activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover.
Gene Name:
CHRM5
Uniprot ID:
P08912
Molecular Weight:
60073.205 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.0023 uMNot AvailableBindingDB 50109647
References
  1. Moriya H, Takagi Y, Nakanishi T, Hayashi M, Tani T, Hirotsu I: Affinity profiles of various muscarinic antagonists for cloned human muscarinic acetylcholine receptor (mAChR) subtypes and mAChRs in rat heart and submandibular gland. Life Sci. 1999;64(25):2351-8. [10374898 ]
  2. Jha S, Parsons M: Treatment of overactive bladder in the aging population: focus on darifenacin. Clin Interv Aging. 2006;1(4):309-16. [18046909 ]
  3. Sagara Y, Sagara T, Mase T, Kimura T, Numazawa T, Fujikawa T, Noguchi K, Ohtake N: Cyclohexylmethylpiperidinyltriphenylpropioamide: a selective muscarinic M(3) antagonist discriminating against the other receptor subtypes. J Med Chem. 2002 Feb 14;45(4):984-7. [11831911 ]