Linopirdine

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Linopirdine

Systematic (IUPAC) name
1-phenyl-3,3-bis(pyridin-4-ylmethyl)-1,3-dihydro-2H-indol-2-one
Clinical data
Legal status	?
Identifiers
CAS number	105431-72-9^N
ATC code	N06BX09
PubChem	CID 3932
IUPHAR ligand	2599
ChemSpider	3795^Y
UNII	I5TB3NZ94T^Y
KEGG	D04741^Y
ChEMBL	CHEMBL319111^Y
Chemical data
Formula	C₂₆H₂₁N₃O
Mol. mass	391.465 g/mol
SMILES O=C2N(c1ccccc1C2(Cc3ccncc3)Cc4ccncc4)c5ccccc5
InChI InChI=1S/C26H21N3O/c30-25-26(18-20-10-14-27-15-11-20,19-21-12-16-28-17-13-21)23-8-4-5-9-24(23)29(25)22-6-2-1-3-7-22/h1-17H,18-19H2^Y Key:YEJCDKJIEMIWRQ-UHFFFAOYSA-N^Y
N (what is this?) (verify)

Linopirdine is a putative cognition-enhancing drug with a novel mechanism of action. Linopirdine blocks the KCNQ2\3 heteromer M current with an IC50 of 2.4nM^[1] disinhibiting acetylcholine release, and increasing hippocampal CA3-schaffer collateral mediated glutamate release onto CA1 pyramidal neurons.^[2] In a murine model linopirdine is able to nearly completely reverse the senescence-related decline in cortical c-FOS, an effect which is blocked by atropine and MK-801, suggesting Linopirdine can compensate for the age related decline in acetylcholine release.^[3] Linopirdine also blocks homomeric KCNQ1 and KCNQ4 voltage gated potassium channels which contribute to vascular tone with substantially less selectivity than KCNQ2/3.^[1]

References

↑ 1.0 1.1 Schnee, M. E.; Brown, B. S. (1998). "Selectivity of linopirdine (DuP 996), a neurotransmitter release enhancer, in blocking voltage-dependent and calcium-activated potassium currents in hippocampal neurons". The Journal of pharmacology and experimental therapeutics 286 (2): 709–717. PMID 9694925.
↑ Sun, J.; Kapur, J. (2012). "M-type potassium channels modulate Schaffer collateral-CA1 glutamatergic synaptic transmission". The Journal of Physiology 590 (16): 3953–3964. doi:10.1113/jphysiol.2012.235820. PMC 3476642. PMID 22674722.
↑ Dent, G. W.; Rule, B. L.; Zhan, Y.; Grzanna, R. (2001). "The acetylcholine release enhancer linopirdine induces Fos in neocortex of aged rats". Neurobiology of aging 22 (3): 485–494. PMID 11378256.

v t e Channel blockers

Calcium (Ca²⁺)	Amlodipine Amrinone Anandamide Anipamil Aranidipine Azelnidipine Azimilide Barnidipine Bencyclane Benidipine Bepridil Berbamine Bevantolol Canadine Carboxyamidotriazole Caroverine Cilnidipine Cinnarizine Clentiazem Clevidipine Conotoxins Darodipine Dauricine Devapamil Diltiazem Dimeditiapramine Dotarizine Dronedarone Efonidipine Emopamil Enpiperate Eperisone Ethosuximide Falipamil Fantofarone Fasudil Felodipine Fenamic acid Fendiline Flunarizine Fostedil Gallopamil Isradipine Lacidipine Lamotrigine Lercanidipine Lidoflazine Magnesium sulfate Manidipine Manoalide Mepirodipine Mesuximide Mibefradil Monatepil Naftopidil Nicardipine Nifedipine Niguldipine Niludipin Nilvadipine Nimodipine Nisoldipine Nitrendipine Norverapamil Ochratoxin A Osthol Otilonium bromide Oxodipine Perhexiline Phensuximide Pinaverium Piperidine Pranidipine Prenylamine Risedronic acid Ryodipine Sesamodil Sodium valproate Stepholidine TROX-1 Terodiline Tetrahydropalmatine Tetrandrine Tolfenamic acid Tranilast Valnoctamide Valperinol Valproate pivoxil Valproate semisodium Valproic acid Valpromide Verapamil Ziconotide Selective VDCC ligands: 4-Methylpregabalin Atagabalin Gabapentin Gabapentin enacarbil Imagabalin PD-200,347 PD-217,014 PD-299,685 Pregabalin

Potassium (K⁺)	3,4-Diaminopyridine 4-Aminopyridine Amiodarone Bretylium Bunaftine Charybdotoxin Conotoxins Dofetilide Dronedarone E-4031 Ibutilide Linopirdine Maurotoxin Nifekalant Paxilline Sotalol Tedisamil Tetraethylammonium Vernakalant

Sodium (Na⁺)	Antiarrhythmics: Ajmaline Aprindine Disopyramide Dronedarone Encainide Flecainide Lidocaine Lorajmine Lorcainide Mexiletine Moricizine Phenytoin Pilsicainide Prajmaline Procainamide Propafenone Quinidine Sparteine Tocainide Anticonvulsants: Carbamazepine Eslicarbazepine acetate Ethotoin Fosphenytoin Licarbazepine Mephenytoin Oxcarbazepine Oxitriptyline Phenytoin Rufinamide Topiramate Sodium valproate Valnoctamide Valproate pivoxil Valproate semisodium Valproic acid Valpromide Diuretics: Amiloride Benzamil Triamterene Local anesthetics: pFBT Amylocaine Articaine Benzocaine Bupivacaine (Levobupivacaine, Ropivacaine) Butacaine Butamben Chloroprocaine Cinchocaine Cocaine Cyclomethycaine Dimethocaine Etidocaine Hexylcaine Iontocaine Lidocaine Mepivacaine Meprylcaine Metabutoxycaine Orthocaine Piperocaine Prilocaine Procaine Propoxycaine Proxymetacaine Risocaine Tetracaine Trimecaine Toxins: Conotoxins Neosaxitoxin Saxitoxin Tetrodotoxin Others: Menthol

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Ampakines	CX-516 CX-546 CX-614 CX-691 CX-717 IDRA-21 LY-404,187 LY-503,430 Nooglutyl Org 26576 PEPA S-18986

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M: PSO/PSI

mepr

dsrd (o, p, m, p, a, d, s), sysi/epon, spvo

proc (eval/thrp), drug (N5A/5B/5C/6A/6B/6D)

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Linopirdine

See also

References