U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry ABSOLUTE
Molecular Formula C21H27NO4
Molecular Weight 357.4434
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of LAUDANOSINE

SMILES

COC1=C(OC)C=C(C[C@@H]2N(C)CCC3=CC(OC)=C(OC)C=C23)C=C1

InChI

InChIKey=KGPAYJZAMGEDIQ-KRWDZBQOSA-N
InChI=1S/C21H27NO4/c1-22-9-8-15-12-20(25-4)21(26-5)13-16(15)17(22)10-14-6-7-18(23-2)19(11-14)24-3/h6-7,11-13,17H,8-10H2,1-5H3/t17-/m0/s1

HIDE SMILES / InChI
Laudanosine, a potentially epileptogenic metabolite of the neuromuscular relaxant atracurium besylate with potentially toxic effects. Laudanosine is a non-competitive and voltage-dependent inhibitor of alpha7, alpha4beta2 or alpha4beta4 nicotinic acetylcholine receptors, opioid mu 1 type receptors and possesses a low-affinity to the GABA receptors, but didn’t interact with the benzodiazepine or muscarinic receptors.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Target ID: gamma-aminobutyric acid (GABA) receptors
Target ID: P35372|||G8XRH8|||Q5TDA1|||Q9UN57
Gene ID: 4988.0
Gene Symbol: OPRM1
Target Organism: Homo sapiens (Human)
2.7 µM [Ki]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
PubMed

PubMed

TitleDatePubMed
Evaluation of the enantioselectivity of glycogen-based dual chiral selector systems towards basic drugs in capillary electrophoresis.
2010-11-05
The biosynthesis of papaverine proceeds via (S)-reticuline.
2010-08
Determination of atracurium, cisatracurium and mivacurium with their impurities in pharmaceutical preparations by liquid chromatography with charged aerosol detection.
2010-02-19
Laudanosine has no effects on respiratory activity but induces non-respiratory excitement activity in isolated brainstem-spinal cord preparation of neonatal rats.
2010
Use of intrathecal and intravenous clonidine in a case of severe tetanus with acute renal failure.
2009-04
Bis-tetrahydroisoquinoline derivatives: AG525E1, a new step in the search for non-quaternary non-peptidic small conductance Ca(2+)-activated K(+) channel blockers.
2008-06-01
Applicability of ultra-performance liquid chromatography-tandem mass spectrometry for heroin profiling.
2008-04-25
[Absorption of papaverine, laudanosine and cepharanthine across human intestine by using human Caco-2 cells monolayers model].
2008-02
Synthesis of carbon-11 labeled 1-(3,4-dimethoxybenzyl)-2,2-dimethyl-1,2,3,4-tetrahydroisoquinolinium derivatives as new potential PET SKCa channel imaging agents.
2008-02
Clinical review: Drug metabolism and nonrenal clearance in acute kidney injury.
2008
Bioactive constituents of the roots of Polyalthia cerasoides.
2007-09
Simultaneous determination of atracurium and its metabolite laudanosine in post-mortem fluids by liquid chromatography/multiple-stage mass spectrometry on an ion trap.
2007
Anesthesiologist suicide with atracurium.
2006-03
Chiral separation of norlaudanosoline, laudanosoline, laudanosine, chlorthalidone, and three benzoin derivatives using amino acid based molecular micelles.
2006-02
SK channels control the firing pattern of midbrain dopaminergic neurons in vivo.
2005-12
Evaluation of benzyltetrahydroisoquinolines as ligands for neuronal nicotinic acetylcholine receptors.
2005-09
Perinatal neuroprotection by muscle relaxants against hypoxic-ischemic lesions: is it a possible hypothesis?
2005-08
Synthesis and biological evaluation of N-methyl-laudanosine iodide analogues as potential SK channel blockers.
2005-02-15
Transformation of opium poppy (Papaver somniferum L.) with antisense berberine bridge enzyme gene (anti-bbe) via somatic embryogenesis results in an altered ratio of alkaloids in latex but not in roots.
2004-12
The efficient synthesis of morphinandienone alkaloids by using a combination of hypervalent iodine(III) reagent and heteropoly acid.
2004-10-11
Instability of pancuronium in postmortem blood and liver taken after a fatal intramuscular Pavulon injection.
2004-07-16
The insulin pump as murder weapon: a case report.
2004-06
The GC-MS detection and characterization of reticuline as a marker of opium use.
2004-05-28
The GC-MS detection and characterization of reticuline as a marker of opium use.
2004-03-10
Identification and quantitation of six non-depolarizing neuromuscular blocking agents by LC-MS in biological fluids.
2004-03
Aporphine alkaloids from Guatteria spp. with leishmanicidal activity.
2003-07
The possible neuroprotective effect of laudanosine, an atracurium and cisatracurium metabolite.
2003-07
Cerebrospinal fluid concentrations of atracurium, laudanosine and vecuronium following clinical subarachnoid hemorrhage.
2002-11
Methyl-laudanosine: a new pharmacological tool to investigate the function of small-conductance Ca(2+)-activated K(+) channels.
2002-09
Pharmacodynamics and atracurium and laudanosine concentrations during a fixed continuous infusion of atracurium in mechanically ventilated patients with acute respiratory distress syndrome.
2002-08
Colominic acid: a novel chiral selector for capillary electrophoresis of basic drugs.
2002-07-12
Laudanosine, an atracurium and cisatracurium metabolite.
2002-07
Does ester hydrolysis change the in vitro degradation rate of cisatracurium and atracurium?
2002-04
Concentration-effect relationship of cisatracurium at three different dose levels in the anesthetized patient.
2001-08
The pharmacokinetics of cisatracurium in patients with acute respiratory distress syndrome.
2001-08
Inhibitory effects of ethaverine, a homologue of papaverine, on monoamine oxidase activity in mouse brain.
2001-07
Blockade and activation of the human neuronal nicotinic acetylcholine receptors by atracurium and laudanosine.
2001-04
Pharmacokinetic-pharmacodynamic modeling of atracurium in intensive care patients.
2001-01
Laudanosine and atracurium concentrations in a patient receiving long-term atracurium infusion.
1998-01

Sample Use Guides

In mice and rats: i.v. bolus doses of laudanosine 10-20 mg kg-1, caused convulsions and hind limb extensions
Route of Administration: Intravenous
In Vitro Use Guide
Laudanosine was almost ineffective at [3H]muscimol binding to high-affinity GABA receptors (IC50 = 100 microM). However, laudanosine displayed an inhibitory effect at the low-affinity GABA receptors labeled by [3H]bicuculline methochloride, with an IC50 value of 10 microM. At the opioid receptor subtype, laudanosine lowered radiolabeled opioid binding at the mu 1, mu 2, delta, kappa 1, and kappa 3 receptors with Ki values of 2.7, 13, 5.5, 21, and 24 microM, respectively.
Name Type Language
NSC-35045
Preferred Name English
LAUDANOSINE
INCI   MI  
INCI  
Official Name English
1,2,3,4-TETRAHYDRO-6,7-DIMETHOXY-2-METHYL-1-VERATRYLISOQUINOLINE
Systematic Name English
Isoquinoline, 1-[(3,4-dimethoxyphenyl)methyl]-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-, (1S)-
Systematic Name English
(1S)-1-((3,4-DIMETHOXYPHENYL)METHYL)-1,2,3,4-TETRAHYDRO-6,7-DIMETHOXY-2-METHYLISOQUINOLINE
Systematic Name English
LAUDANOSINE [MI]
Common Name English
(S)-(+)-LAUDANOSINE
Common Name English
N-METHYLTETRAHYDROPAPAVERINE
Common Name English
Code System Code Type Description
CAS
2688-77-9
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
SMS_ID
300000043559
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
PUBCHEM
73397
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
NSC
35045
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
EPA CompTox
DTXSID30878577
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
MERCK INDEX
m6706
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY Merck Index
WIKIPEDIA
LAUDANOSINE
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
FDA UNII
DA7R5WVN48
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
ECHA (EC/EINECS)
220-253-2
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
MESH
C001522
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
PRIMARY
CAS
1699-51-0
Created by admin on Mon Mar 31 19:02:03 GMT 2025 , Edited by admin on Mon Mar 31 19:02:03 GMT 2025
NON-SPECIFIC STEREOCHEMISTRY