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Details

Stereochemistry ABSOLUTE
Molecular Formula C16H17N2O6P.2Na
Molecular Weight 410.2693
Optical Activity UNSPECIFIED
Defined Stereocenters 2 / 2
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of Foslevcromakalim sodium

SMILES

[Na+].[Na+].CC1(C)OC2=CC=C(C=C2[C@H]([C@@H]1OP([O-])([O-])=O)N3CCCC3=O)C#N

InChI

InChIKey=HQRIFHGJGBFZSE-AMTWEWDESA-L
InChI=1S/C16H19N2O6P.2Na/c1-16(2)15(24-25(20,21)22)14(18-7-3-4-13(18)19)11-8-10(9-17)5-6-12(11)23-16;;/h5-6,8,14-15H,3-4,7H2,1-2H3,(H2,20,21,22);;/q;2*+1/p-2/t14-,15+;;/m1../s1

HIDE SMILES / InChI

Molecular Formula C16H17N2O6P
Molecular Weight 364.2897
Charge -2
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 2 / 2
E/Z Centers 0
Optical Activity UNSPECIFIED

Molecular Formula Na
Molecular Weight 22.98976928
Charge 1
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Cromakalim is an ATP-sensitive potassium (KATP) channel opener, which was studied for the treatment of gastric ulcer, hypertension and preventing a cardiomyopathy. But the development of this drug was discontinued due to heart lesions found in monkey chronic toxicity studies.

Approval Year

PubMed

PubMed

TitleDatePubMed
Shear stress increases expression of a KATP channel in rat and bovine pulmonary vascular endothelial cells.
2003-10
The role of K+ channels in vasorelaxation induced by hypoxia and the modulator effects of lidocaine in the rat carotid artery.
2003-08
Effect of acute hypoxia on ATP-sensitive potassium currents in substantia gelatinosa neurons of juvenile rats.
2003-08
Antiulcer activity of levcromakalim and nicorandil in albino rats: a comparative study.
2003-07-15
Differential role of PTK and ERK MAPK in superoxide impairment of K(ATP) and K(Ca) channel cerebrovasodilation.
2003-07
Differential antivasoconstrictor effects of levcromakalim and rilmakalim on the isolated human mammary artery and saphenous vein.
2003-06
Defibrillatory action of glibenclamide is independent from ATP-sensitive K+ channels and free radicals.
2003-06
Mitochondrial K ATP channel activation is important in the antiarrhythmic and cardioprotective effects of non-hypotensive doses of nicorandil and cromakalim during ischemia/reperfusion: a study in an intact anesthetized rabbit model.
2003-06
Role of cyclooxygenase-1 and -2, phospholipase C, and protein kinase C in prostaglandin-mediated gastroprotection.
2003-06
Increased superoxide dismutase and Na+, K+-ATPase activities in aortic strips from potassium-adapted rats: implication for altered vascular reactivity.
2003-05
Dualistic actions of cromakalim and new potent 2H-1,4-benzoxazine derivatives on the native skeletal muscle K ATP channel.
2003-05
Effect of hypoxia on vasodilator responses to S-nitroso-N-acetylpenicillamine and levcromakalim in guinea pig basilar artery.
2003-05
Potassium channel activators based on the benzopyran substructure: synthesis and activity of the C-8 substituent.
2003-04-17
Coronary myogenic constriction antagonizes EDHF-mediated dilation: role of KCa channels.
2003-04
Dual effect of agmatine in the bisected rat vas deferens.
2003-03
Differential effects of ascorbate on endothelium-derived hyperpolarizing factor (EDHF)-mediated vasodilatation in the bovine ciliary vascular bed and coronary artery.
2003-03
[Analyses of Ca-related ion channel currents and their involvement in Ca mobilization in smooth muscle and endothelial cells].
2003-03
Mexiletine differentially modulates vasorelaxation mediated by adenosine triphosphate-sensitive K+ channels in aortas from normotensive and hypertensive rats.
2003-03
Contractile responses of the human umbilical artery to KCl and serotonin in Ca-free medium and the effects of levcromakalim.
2003-02-07
Apamin inhibits NO-induced relaxation of the spontaneous contractile activity of the myometrium from non-pregnant women.
2003-02-05
[Effect of levcromakalim and cromakalim on ATP-sensitive K+ channel of pulmonary arterial smooth muscle cells in pulmonary hypertensive rats].
2003-02
Differential effects of sulphonylureas on the vasodilatory response evoked by K(ATP) channel openers.
2003-02
In vivo evaluation of the potency and bladder-vascular selectivity of the ATP-sensitive potassium channel openers (-)-cromakalim, ZD6169 and WAY-133537 in rats.
2003-02
Inhibition of cromakalim-activated K+ current by ethanol in follicle-enclosed Xenopus oocytes.
2003-01
Inhibitory effects of etomidate and ketamine on adenosine triphosphate-sensitive potassium channel relaxation in canine pulmonary artery.
2003-01
Effects of ATP-sensitive K+ channel openers and tolterodine on involuntary bladder contractions in a pig model of partial bladder outlet obstruction.
2003
Alterations in KATP and KCa channel function in cerebral arteries of insulin-resistant rats.
2002-12
Ketamine stereoselectively affects vasorelaxation mediated by ATP-sensitive K(+) channels in the rat aorta.
2002-10
Fluorescence-based functional assay for sarcolemmal ATP-sensitive potassium channel activation in cultured neonatal rat ventricular myocytes.
2002-08-08
Molecular modeling and QSAR studies on K(ATP) channel openers of the benzopyran type.
2002-08
Effects of chronic treatment with cromakalim and glibenclamide in alloxan-induced diabetic rats.
2002-08
Synthesis and vasorelaxant activity of new 1,4-benzoxazine derivatives potassium channel openers.
2002-08
Protein tyrosine kinase and mitogen-activated protein kinase activation contribute to K(ATP) and K(ca) channel impairment after brain injury.
2002-07-12
Involvement of K+ channels in adenosine A2A and A2B receptor-mediated hyperpolarization of porcine coronary artery endothelial cells.
2002-07
Potassium channels and human corporeal smooth muscle cell tone: diabetes and relaxation of human corpus cavernosum smooth muscle by adenosine triphosphate sensitive potassium channel openers.
2002-07
Modified ionic models of cardiac tissue for efficient large scale computations.
2002-06-07
The novel diazoxide analog 3-isopropylamino-7-methoxy-4H-1,2,4-benzothiadiazine 1,1-dioxide is a selective Kir6.2/SUR1 channel opener.
2002-06
Active relaxation of human gallbladder muscle is mediated by ATP-sensitive potassium channels.
2002
Involvement of ATP-sensitive potassium channels in a model of a delayed vascular hyporeactivity induced by lipopolysaccharide in rats.
1999-07
Glibenclamide-sensitive hypotension produced by helodermin assessed in the rat.
1998-12
Role of potassium channels in halothane-epinephrine arrhythmias.
1998-06
K+ channel openers delay intestinal transit and have antidiarrheal activity.
1995-12-12
Cellular localization of the inhibitory action of relaxin against uterine spasm.
1995-12
Effect of four potassium channel agonists on bupivacaine-induced toxicity in mice.
1995
Effects of potassium channel modulation during global ischaemia in isolated rat heart with and without cardioplegia.
1992-11
Effects of NG-nitro-L-arginine methyl ester on vasodilator responses to adrenaline or BRL 38227 in conscious rats.
1991-11
Effects of cromakalim and pinacidil on large epicardial and small coronary arteries in conscious dogs.
1990-11
Preclinical pharmacology of Ro 31-6930, a new potassium channel opener.
1990-02
Effects of pinacidil and cromakalim (BRL 34915) on bladder function in rats with detrusor instability.
1989-10
The relaxant action of BRL 34915 in rat uterus.
1987-08
Patents

Sample Use Guides

Eight patients with moderately severe asthma were given 0.125, 0.25, and 0.5 mg of Levcromakalim (BRL 38227)
Route of Administration: Oral
Levcromakalim (0.1 uM) hyperpolarized the smooth muscle and decreased membrane resistance in the rat tail artery
Substance Class Chemical
Created
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on Wed Apr 02 10:33:16 GMT 2025
Edited
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on Wed Apr 02 10:33:16 GMT 2025
Record UNII
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Name Type Language
LEVCROMAKALIM DISODIUM PHOSPHATE
Preferred Name English
Foslevcromakalim sodium
Common Name English
LEVCROMAKALIM PHOSPHATE ESTER SODIUM SALT
Common Name English
(3S,4R)-3,4-DIHYDRO-2,2-DIMETHYL-4-(2-OXO-1-PYRROLIDINYL)-3-(PHOSPHONOOXY)-2H-1-BENZOPYRAN-6-CARBONITRILE, SODIUM SALT (1:2)
Systematic Name English
2H-1-BENZOPYRAN-6-CARBONITRILE, 3,4-DIHYDRO-2,2-DIMETHYL-4-(2-OXO-1-PYRROLIDINYL)-3-(PHOSPHONOOXY)-, SODIUM SALT (1:2), (3S,4R)-
Systematic Name English
Code System Code Type Description
PUBCHEM
91826793
Created by admin on Wed Apr 02 10:33:16 GMT 2025 , Edited by admin on Wed Apr 02 10:33:16 GMT 2025
PRIMARY PUBCHEM
CAS
1802655-71-5
Created by admin on Wed Apr 02 10:33:16 GMT 2025 , Edited by admin on Wed Apr 02 10:33:16 GMT 2025
PRIMARY
FDA UNII
YBT5QW7T2V
Created by admin on Wed Apr 02 10:33:16 GMT 2025 , Edited by admin on Wed Apr 02 10:33:16 GMT 2025
PRIMARY
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