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Details

Stereochemistry ABSOLUTE
Molecular Formula C20H20ClF2N3O3S.ClH
Molecular Weight 492.367
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ABT-639 HYDROCHLORIDE

SMILES

Cl.[H][C@]12CCCN1CCN(C2)C(=O)C3=CC(=C(F)C=C3Cl)S(=O)(=O)NC4=CC=CC=C4F

InChI

InChIKey=KZRCYRFDOFTBHY-BTQNPOSSSA-N
InChI=1S/C20H20ClF2N3O3S.ClH/c21-15-11-17(23)19(30(28,29)24-18-6-2-1-5-16(18)22)10-14(15)20(27)26-9-8-25-7-3-4-13(25)12-26;/h1-2,5-6,10-11,13,24H,3-4,7-9,12H2;1H/t13-;/m1./s1

HIDE SMILES / InChI

Molecular Formula ClH
Molecular Weight 36.461
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C20H20ClF2N3O3S
Molecular Weight 455.906
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

ABT-639 is a T-type calcium (Cav3.2) channel antagonist that was in development with AbbVie for the treatment for pain. ABT-639 is a potent and selective T-type calcium channel blocker. ABT-639 effectively reduces nociceptive and neuropathic pain in rats. ABT-639 produces robust antinociceptive activity in experimental pain models at doses that do not significantly alter psychomotor or hemodynamic function in the rat. ABT-639 blocks recombinant human T-type (Cav3.2) Ca2+ channels in a voltage-dependent fashion (IC50=2 uM) and attenuates low voltage-activated (LVA) currents in rat DRG neurons (IC50=8 uM). ABT-639 was significantly less active at other Ca²⁺ channels (e.g. Ca(v)1.2 and Ca(v)2.2) (IC₅₀ > 30 uM). ABT-639 has high oral bioavailability (%F = 73), low protein binding (88.9%) and a low brain:plasma ratio (0.05:1) in rodents.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
2.3 µM [IC50]
PubMed

PubMed

TitleDatePubMed
A peripherally acting, selective T-type calcium channel blocker, ABT-639, effectively reduces nociceptive and neuropathic pain in rats.
2014 Jun 15
Optimization of ADME Properties for Sulfonamides Leading to the Discovery of a T-Type Calcium Channel Blocker, ABT-639.
2015 Jun 11
A Randomized, Double-Blind, Placebo-Controlled, Crossover Study of the T-Type Calcium Channel Blocker ABT-639 in an Intradermal Capsaicin Experimental Pain Model in Healthy Adults.
2016 Mar
Patents

Sample Use Guides

Healthy adult males (aged 21 to 55 years) were randomly assigned to receive single oral doses of ABT-639, pregabalin, and placebo. A single 100-mg dose of ABT-639 had no effect on experimental pain induced by intradermal capsaicin injection.
Route of Administration: Oral
ABT-639 blocks recombinant human T-type (Cav3.2) Ca2+ channels in a voltage-dependent fashion (IC50=2 uM) and attenuates low voltage-activated (LVA) currents in rat DRG neurons (IC50=8 uM). ABT-639 is significantly less active at other Ca2+ channels (e.g. Cav1.2 and Cav2.2) (IC50>30 uM).
Substance Class Chemical
Created
by admin
on Sat Dec 16 08:19:33 GMT 2023
Edited
by admin
on Sat Dec 16 08:19:33 GMT 2023
Record UNII
PNZ74XN2EM
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
ABT-639 HYDROCHLORIDE
Common Name English
BENZENESULFONAMIDE, 4-CHLORO-2-FLUORO-N-(2-FLUOROPHENYL)-5-(((8AR)-HEXAHYDROPYRROLO(1,2-A)PYRAZIN-2(1H)-YL)CARBONYL)-, HYDROCHLORIDE (1:1)
Systematic Name English
Code System Code Type Description
PUBCHEM
122180940
Created by admin on Sat Dec 16 08:19:33 GMT 2023 , Edited by admin on Sat Dec 16 08:19:33 GMT 2023
PRIMARY
FDA UNII
PNZ74XN2EM
Created by admin on Sat Dec 16 08:19:33 GMT 2023 , Edited by admin on Sat Dec 16 08:19:33 GMT 2023
PRIMARY
CAS
1235560-31-2
Created by admin on Sat Dec 16 08:19:33 GMT 2023 , Edited by admin on Sat Dec 16 08:19:33 GMT 2023
PRIMARY
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