98791-67-4

98791-67-4 structure

Name: (R)-(+)-Bay K 8644
Chemical Name: r(+)-bay k 8644
CAS Number: 98791-67-4
Molecular Formula: C₁₆H₁₅F₃N₂O₄
Molecular Weight: 356.297
Catalog: Signaling Pathways Membrane Transporter/Ion Channel Calcium Channel
Create Date: 2017-06-02 08:51:10
Modify Date: 2025-08-22 13:19:33
Bay-K-8644 (R)-(+)- is a calcium channel inhibitor. Bay-K-8644 (R)-(+)- inhibits Ba2+ currents (IBa) (IC50=975 nM).

Name	r(+)-bay k 8644
Synonyms	Methyl 2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydro-3-pyridinecarboxylate (±)-Bay K8644 Bay K 8644 Methyl (4R)-2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydro-3-pyridinecarboxylate Bay K 8644,(±)- methyl 2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3-carboxylate (±)-Bay K 8644 3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-, methyl ester Methyl (4R)-2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3-carboxylate (R)-Bay-K-8644 3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-, methyl ester, (4R)- Bay K8644 Bay-K-8644 ((R)-(+)-)

Description	Bay-K-8644 (R)-(+)- is a calcium channel inhibitor. Bay-K-8644 (R)-(+)- inhibits Ba2+ currents (IBa) (IC50=975 nM).
Related Catalog	Signaling Pathways >> Membrane Transporter/Ion Channel >> Calcium Channel Research Areas >> Cardiovascular Disease
Target	IC50: 975 nM (IBa)[1]
In Vitro	(±)-Bay K 8644, a conventional racemic mixture of Bay K 8644, is widely used as an L-type Ca2+ channel agonist. Each optical isomer possesses opposite effects on IBa, Bay-K-8644 (R)-(+)- as an antagonist and S(-)-Bay K 8644 as an agonist. Bay-K-8644 (R)-(+)- inhibits Ba2+ currents (IBa) (IC50=975 nM). When Bay-K-8644 (R)-(+)- (0.5 μM) is applied, IBa is suppressed to 71±10% of control. In the presence of Bay-K-8644 (R)-(+)- (0.5 μM), additional application of forskolin and sodium nitroprusside (SNP) further inhibits IBa[1]. Bay-K-8644 (R)-(+)- is a calcium channel inhibitor[2].
References	[1]. Zhu HL, et al. Antagonistic actions of S(-)-Bay K 8644 on cyclic nucleotide-induced inhibition of voltage-dependent Ba(2+) currents in guinea pig gastric antrum. Naunyn Schmiedebergs Arch Pharmacol. 2008 Dec;378(6):609-15. [2]. Sidaway P, et al. L-type Ca2+ channel sparklets revealed by TIRF microscopy in mouse urinary bladder smooth muscle. PLoS One. 2014 Apr 3;9(4):e93803.