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Details

Stereochemistry ACHIRAL
Molecular Formula C13H8N4OS
Molecular Weight 268.294
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of C-16

SMILES

O=C1NC2=CC=C3N=CSC3=C2\C1=C\C4=CN=CN4

InChI

InChIKey=VFBGXTUGODTSPK-BAQGIRSFSA-N
InChI=1S/C13H8N4OS/c18-13-8(3-7-4-14-5-15-7)11-9(17-13)1-2-10-12(11)19-6-16-10/h1-6H,(H,14,15)(H,17,18)/b8-3-

HIDE SMILES / InChI

Molecular Formula C13H8N4OS
Molecular Weight 268.294
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 1
Optical Activity NONE

Description

C16 (PKRi) is a selective inhibitor of the enzyme double-stranded RNA-dependent protein kinase (PKR). PKRi prevents striatal neurodegeneration and improves behavioral outcomes in a chemically induced mouse model of Huntington's disease, the efffect mediated by off-target inhibition of CDKs. PKRi restored memory deficit in a mouse model of Alzheimer's disease. In a mouse model of colon-26 adenocarcinoma, treatment with C16 lead to a significantly higher level of blood glucose and lower level of serum triglyceride compared with placebo group, which indicates potential use for alleviation of cachexia.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.21 µM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Palliative
Unknown
Primary
Unknown

PubMed

Sample Use Guides

In Vivo Use Guide
In the model of Huntington's disease, C16 was administered to mice intraperioneally at the dose of 0.27 mg/kg once a day for 5 days.
Route of Administration: Intraperitoneal
In Vitro Use Guide
Kinase inhibition was measured using rate of a transfer of [gamma32P]Atp to poly[I:C] after incubation with 68 nM PKR in 20 mM Tris-HCl buffer (pH 7.6). IC50 for compound 16 was 0.21 uM.
Substance Class Chemical
Record UNII
C9Q75QZK84
Record Status Validated (UNII)
Record Version