GSK2606414   Click here for help

GtoPdb Ligand ID: 6740

Synonyms: 3-fluoro-GSK2606414 | compound 38 [PMID: 22827572] [1] | GSK PERK Inhibitor
Compound class: Synthetic organic
Comment: GSK2606414 is an analogue identified by a medicinal chemistry study to find novel, potent and selective protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK) inhibitors [1]. The official HGNC endorsed name for PERK is eukaryotic translation initiation factor 2-alpha kinase 3 (with gene symbol EIF2AK3). GSK2606414 is highly selective and is orally available.
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 5
Hydrogen bond donors 1
Rotatable bonds 5
Topological polar surface area 77.04
Molecular weight 469.15
XLogP 4.54
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
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Canonical SMILES Fc1cc(CC(=O)N2CCc3c2ccc(c3)c2cn(c3c2c(N)ncn3)C)cc(c1)C(F)(F)F
Isomeric SMILES Fc1cc(CC(=O)N2CCc3c2ccc(c3)c2cn(c3c2c(N)ncn3)C)cc(c1)C(F)(F)F
InChI InChI=1S/C24H19F4N5O/c1-32-11-18(21-22(29)30-12-31-23(21)32)14-2-3-19-15(9-14)4-5-33(19)20(34)8-13-6-16(24(26,27)28)10-17(25)7-13/h2-3,6-7,9-12H,4-5,8H2,1H3,(H2,29,30,31)
InChI Key PXVQGBJMIQCDEX-UHFFFAOYSA-N
Bioactivity Comments
GSK2606414 is reported to rescue early stage neurological defects in a mouse model of prion disease [3], likely by targeting the unfolded protein response (which is a common mechanism in neurodegenerative diseases [4]) .
GSK2606414 has many low potency off-targets (see Table 5 [1]) with IC50 values > 1μM. Off-targets with IC50s in the 150-1000nM range include c-KIT, Aurora kinase B, protein tyrosine kinase 6 (BRK), MAP3K10, MER proto-oncogene, myosin light chain kinase 2 (MYLK2), inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase epsilon (IKBKe), neurotrophic tyrosine kinase, receptor, type 3 (TrkC) and MAP3K11 [1]. GSK2606414 broadly inhibits cytochrome P450s in human liver microsomes, with submicromolar inhibition of CYP2C8 (IC50 = 0.89 μM) indicating unfavourable pharmacokinetics [2].
Selectivity at enzymes
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
eukaryotic translation initiation factor 2 alpha kinase 3 Primary target of this compound Hs Inhibitor Inhibition 9.4 pIC50 - 1
pIC50 9.4 (IC50 4x10-10 M) [1]
myosin light chain kinase 2 Hs Inhibitor Inhibition 6.2 pIC50 - 1
pIC50 6.2 (IC50 7.01x10-7 M) [1]