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Details

Stereochemistry ACHIRAL
Molecular Formula C19H16ClNO4
Molecular Weight 357.788
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of A-803467

SMILES

COC1=CC(OC)=CC(NC(=O)C2=CC=C(O2)C3=CC=C(Cl)C=C3)=C1

InChI

InChIKey=VHKBTPQDHDSBSP-UHFFFAOYSA-N
InChI=1S/C19H16ClNO4/c1-23-15-9-14(10-16(11-15)24-2)21-19(22)18-8-7-17(25-18)12-3-5-13(20)6-4-12/h3-11H,1-2H3,(H,21,22)

HIDE SMILES / InChI

Molecular Formula C19H16ClNO4
Molecular Weight 357.788
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

A-803467 is a selective NaV1.8 channel blocker with IC50 of 8 nM, blocks tetrodotoxin-resistant currents, exhibits >100-fold selectivity against human NaV1.2, NaV1.3, NaV1.5, and NaV1.7. A-803467 reduces behavioral measures of chronic pain. Systemic administration of A-803467 demonstrated acute antinociceptive activity as measured as a reduction in mechanical allodynia in several models of inflammatory and neuropathic pain in rats. Additionally, systemic and intraspinal delivery of A-803467 attenuates both evoked and spontaneous firing of wide dynamic range neurons in rats with spinal nerve ligations.

CNS Activity

Curator's Comment: A-803467, which shows good penetration into the central nervous system, produced more robust antinociception in neuropathic pain models than a peripherally acting nonselective sodium channel blocker.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
8.0 nM [IC50]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
PubMed

PubMed

TitleDatePubMed
A-803467, a potent and selective Nav1.8 sodium channel blocker, attenuates neuropathic and inflammatory pain in the rat.
2007 May 15
Discovery and biological evaluation of 5-aryl-2-furfuramides, potent and selective blockers of the Nav1.8 sodium channel with efficacy in models of neuropathic and inflammatory pain.
2008 Feb 14
Patents

Sample Use Guides

In Vivo Use Guide
Curator's Comment: A-803467 also dose-dependently reduced mechanical allodynia in a variety of rat pain models including: spinal nerve ligation (ED(50) = 47 mg/kg, i.p.), sciatic nerve injury (ED(50) = 85 mg/kg, i.p.), capsaicin-induced secondary mechanical allodynia (ED(50) approximately 100 mg/kg, i.p.), and thermal hyperalgesia after intraplantar complete Freund's adjuvant injection (ED(50) = 41 mg/kg, i.p.).
Rats: systemic administration of A-803467 (20 mg/kg, i.v.) to spinal nerve ligated rats, significantly reduced both spontaneous and von Frey hairevoked firing of spinal dorsal horn wide dynamic range neurons by 66% and 53%, respectively compared with baseline levels.
Route of Administration: Intravenous
A-803467 potently blocks recombinant human or rat NaV1.8 channels with IC50 of 8 nM and 45 nM, respectively, at a holding potential of -40 mV. At a resting state, A-803467 also potently blocks human NaV1.8 channels with IC50 of 79 nM. A-803467 blocks tetrodotoxin-resistant (TTX-R) currents in rat dorsal root ganglion neurons in a concentration-dependent manner with IC50 of 140 nM. A-803467 at 0.3 uM but not 0.1 uM significantly inhibits the generation of spontaneous and electrically evoked action potentials.
Substance Class Chemical
Created
by admin
on Sat Dec 16 10:04:13 UTC 2023
Edited
by admin
on Sat Dec 16 10:04:13 UTC 2023
Record UNII
339LBH1395
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
A-803467
Common Name English
2-FURANCARBOXAMIDE, 5-(4-CHLOROPHENYL)-N-(3,5-DIMETHOXYPHENYL)-
Systematic Name English
Code System Code Type Description
FDA UNII
339LBH1395
Created by admin on Sat Dec 16 10:04:13 UTC 2023 , Edited by admin on Sat Dec 16 10:04:13 UTC 2023
PRIMARY
EPA CompTox
DTXSID90241480
Created by admin on Sat Dec 16 10:04:13 UTC 2023 , Edited by admin on Sat Dec 16 10:04:13 UTC 2023
PRIMARY
PUBCHEM
16038374
Created by admin on Sat Dec 16 10:04:13 UTC 2023 , Edited by admin on Sat Dec 16 10:04:13 UTC 2023
PRIMARY
CAS
944261-79-4
Created by admin on Sat Dec 16 10:04:13 UTC 2023 , Edited by admin on Sat Dec 16 10:04:13 UTC 2023
PRIMARY
Related Record Type Details
ACTIVE MOIETY