Chemical Component Summary

NameQuinidine
Synonyms(9S)-6'-methoxycinchonan-9-ol
Identifiers(S)-[(1S,2R,4S,5R)-5-ethenyl-1-azabicyclo[2.2.2]octan-2-yl]-(6-methoxyquinolin-4-yl)methanol
FormulaC20 H24 N2 O2
Molecular Weight324.417
TypeNON-POLYMER
Isomeric SMILESCOc1ccc2c(c1)c(ccn2)[C@@H]([C@H]3C[C@@H]4CC[N@]3C[C@@H]4C=C)O
InChIInChI=1S/C20H24N2O2/c1-3-13-12-22-9-7-14(13)10-19(22)20(23)16-6-8-21-18-5-4-15(24-2)11-17(16)18/h3-6,8,11,13-14,19-20,23H,1,7,9-10,12H2,2H3/t13-,14-,19+,20-/m0/s1
InChIKeyLOUPRKONTZGTKE-LHHVKLHASA-N

Chemical Details

Formal Charge0
Atom Count48
Chiral Atom Count5
Bond Count51
Aromatic Bond Count11

Drug Info: DrugBank

DrugBank IDDB00908 
NameQuinidine
Groups
  • investigational
  • approved
DescriptionQuinidine is a D-isomer of [quinine] present in the bark of the Cinchona tree and similar plant species. This alkaloid was first described in 1848 and has a long history as an antiarrhythmic medication.[A38016,A250050] Quinidine is considered the first antiarrhythmic drug (class Ia) and is moderately efficacious in the acute conversion of atrial fibrillation to normal sinus rhythm.[A38016] It prolongs cellular action potential by blocking sodium and potassium currents. A phenomenon known as “quinidine syncope” was first described in the 1950s, characterized by syncopal attacks and ventricular fibrillation in patients treated with this drug.[A38016] Due to its side effects and increased risk of mortality, the use of quinidine was reduced over the next few decades. However, it continues to be used in the treatment of Brugada syndrome, short QT syndrome and idiopathic ventricular fibrillation.[A250050]
Synonyms
  • β-quinine
  • α-(6-methoxy-4-quinolyl)-5-vinyl-2-quinuclidinemethanol
  • (8R,9S)-Quinidine
  • (S)-(6-Methoxyquinolin-4-yl)((2R,5R)-5-vinylquinuclidin-2-yl)methanol
  • Quinidine
Brand Names
  • Novo-quinidin 200mg
  • Quinate Tab 325mg
  • Quinidine Gluconate for Inj 80mg/ml USP
  • Cardioquin Tablets
  • Quinidine gluconate
IndicationQuinidine is indicated for the management and prophylactic therapy of atrial fibrillation/flutter, as well as the suppression of recurrent documented ventricular arrhythmias.[L42420,L3719] It is also used in the treatment of Brugada syndrome, short QT syndrome and idiopathic ventricular fibrillation.[A250050,A250055].
Categories
  • Adrenergic Agents
  • Adrenergic alpha-1 Receptor Antagonists
  • Adrenergic alpha-Antagonists
  • Adrenergic Antagonists
  • Agents producing tachycardia
ATC-Code
  • C01BA01
  • C01BA51
  • C01BA71
CAS number56-54-2

Drug Targets

NameTarget SequencePharmacological ActionActions
Sodium channel protein type 5 subunit alphaMANFLLPRGTSSFRRFTRESLAAIEKRMAEKQARGSTTLQESREGLPEEE...unknowninhibitor
Potassium channel subfamily K member 1MLQSLAGSSCVRLVERHRSAWCFGFLVLGYLLYLVFGAVVFSSVELPYED...unknowninhibitor
Potassium channel subfamily K member 6MRRGALLAGALAAYAAYLVLGALLVARLEGPHEARLRAELETLRAQLLQR...unknowninhibitor
Potassium voltage-gated channel subfamily H member 2MPVRRGHVAPQNTFLDTIIRKFEGQSRKFIIANARVENCAVIYCNDGFCE...unknowninhibitor
Alpha-1A adrenergic receptorMVFLSGNASDSSNCTQPPAPVNISKAILLGVILGGLILFGVLGNILVILS...unknownantagonist
View More
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682

Related Resource References

Resource NameReference
Pharos CHEMBL1294
PubChem 441074
ChEMBL CHEMBL1294
ChEBI CHEBI:28593
CCDC/CSD BOMDUC, MUHZUM, JEYZIX, QUINDE
COD 4102233, 2212613