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Details

Stereochemistry ACHIRAL
Molecular Formula C22H15Br2N3O4
Molecular Weight 545.18
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of IOWH-032

SMILES

OC1=C(Br)C=C(C=C1Br)C2=NOC(=N2)C(=O)NCC3=CC=C(OC4=CC=CC=C4)C=C3

InChI

InChIKey=DSFNLJXHXBIKDS-UHFFFAOYSA-N
InChI=1S/C22H15Br2N3O4/c23-17-10-14(11-18(24)19(17)28)20-26-22(31-27-20)21(29)25-12-13-6-8-16(9-7-13)30-15-4-2-1-3-5-15/h1-11,28H,12H2,(H,25,29)

HIDE SMILES / InChI

Molecular Formula C22H15Br2N3O4
Molecular Weight 545.18
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description

IOWH032 is a synthetic extracellular CFTR inhibitor, originally developed to treat diarrhea, that entered Phase II clinical trials in 2013 but did not progress further in clinical development. iOWH032 has low CFTR inhibition potency (IC50 > 5 uM) and hence rapid (seconds or less) dissociation from CFTR. iOWH032 inhibited secretion by nearly 70% as measured on a semi-quantitative fecal output scale.

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
5.0 µM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Cmax

ValueDoseCo-administeredAnalytePopulation
1280 ng/mL
300 mg single, oral
IOWH-032 plasma
Homo sapiens
482 ng/mL
300 mg single, oral
IOWH-032 plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
22700 ng × h/mL
300 mg single, oral
IOWH-032 plasma
Homo sapiens
6250 ng × h/mL
300 mg single, oral
IOWH-032 plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
8.5 h
300 mg single, oral
IOWH-032 plasma
Homo sapiens
8.2 h
300 mg single, oral
IOWH-032 plasma
Homo sapiens

PubMed

Patents

Sample Use Guides

In Vivo Use Guide
Single dose of 300 mg
Route of Administration: Oral
In Vitro Use Guide
IOWH-032 rapidly blocked and potentiated hCFTR activity in a concentration-dependent manner with apparent Kd value of 6.1 nM and 0.64 nM, respectively. However, IOWH-032 did not potentiate and only blocked mCFTR with an apparent Kd value of 42.9 uM.
Substance Class Chemical
Record UNII
8Y3GDT6YWV
Record Status Validated (UNII)
Record Version