ICA-027243| CAS 325457-89-4

Cas No.:	325457-89-4
Chemical Name:	N-(6-chloro-pyridin-3-yl)-3,4-difluoro-benzamide
Synonyms:	ICA 027243;ICA027243
SMILES:	C1=CC(=C(C=C1C(=O)NC2=CN=C(C=C2)Cl)F)F
Formula:	C₁₂H₇ClF₂N₂O
M.Wt:	268.648
Purity:	>98%
Sotrage:	2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Description:	ICA-27243 is a selective, potent and orally active KCNQ2/Q3 potassium channel opener with an EC50 of 0.38 μM. ICA-27243 is less effective at activating KCNQ4 and KCNQ3/Q5. ICA-27243 has antiepileptic and anticonvulsant effects[1][2].
Target:	EC50: 0.38 μM (KCNQ2/Q3 potassium channel)[2]
In Vivo:	ICA-27243 (1-100 mg/kg; oral administration; male CD-1 mice) has anticonvulsant activity (ED50 of 8.4 mg/kg) in the mouse maximal electroshock epilepsy model[1]. Animal Model: Male CD-1 mice with electroshock assay[1] Dosage: 1-100 mg/kg Administration: Oral administration Result: Produced a dose-dependent increase in the latency to hind limb extension, exhibiting an ED50 value of 8.4 mg/kg.
In Vitro:	In SH-SY5Y human neuroblastoma cells, ICA-27243 produces membrane potential hyperpolarization that could be prevented by coadministration with the M-current inhibitors XE-991 and Linopirdine. ICA-27243 enhances both 86Rb+ efflux (EC50 = 0.2 μM) and whole-cell currents in Chinese hamster ovary cells stably expressing heteromultimeric KCNQ2/Q3 channels (EC50 = 0.4 μM). Activation of KCNQ2/Q3 channels is associated with a hyperpolarizing shift of the voltage dependence of channel activation (V1/2 shift of -19 mV at 10 μM)[1].
References:	[1]. Wickenden AD, et al. N-(6-chloro-pyridin-3-yl)-3,4-difluoro-benzamide (ICA-27243): a novel, selective KCNQ2/Q3 potassium channel activator. Mol Pharmacol. 2008 Mar;73(3):977-86. [2]. Amato G, et al. N-Pyridyl and Pyrimidine Benzamides as KCNQ2/Q3 Potassium Channel Openers for the Treatment of Epilepsy. ACS Med Chem Lett. 2011 Mar 31;2(6):481-4.

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