CNX-774

Modify Date: 2024-01-03 02:34:50

CNX-774 Structure
CNX-774 structure
Common Name CNX-774
CAS Number 1202759-32-7 Molecular Weight 499.496
Density 1.4±0.1 g/cm3 Boiling Point N/A
Molecular Formula C26H22FN7O3 Melting Point N/A
MSDS N/A Flash Point N/A

 Use of CNX-774


CNX-774 is a potent, selective, and orally available small molecule inhibitor of Btk (IC50< 1 nM) that forms a ligand-directed covalent bond with Cys-481, a non-conserved amino acid within the active site of the enzyme.IC50 Value: <1 nM [1]Target: Btk KinaseIn biochemical assays, CNX-774 has demonstrated potent inhibition of Btk with an IC50 of <1nM in a continuous-read assay. The covalent bonding of CNX-774 to Btk was confirmed by incubating recombinant Btk protein with a 10-fold molar excess of CNX-774 for 1 hour at room temperature and analysis by MALDI-TOF MS. A shift of protein mass corresponding to the molecular weight of CNX-774 confirmed the covalent bonding of CNX-774 to Btk. Digestion of the covalently bonded Btk with pepsin followed by MSMS analysis established the bonding of CNX-774 to Cys-481. Cellular potency as well as prolonged duration of action of CNX-774 was demonstrated in Ramos cells by using a biotinylated covalent probe that targets the same Cysteine residue as CNX-774.CNX-774 was found to be >90% extractable after 2 hrs of incubation in both rat and human whole blood. These results demonstrate that CNX-774 has potent inhibitory activity towards the intended target, Btk, while achieving remarkable specificity in a variety of assays designed to assess off-target reactivity towards abundant cellular thiols and blood proteins.

 Names

Name 4-{4-[(4-{[3-(Acryloylamino)phenyl]amino}-5-fluoro-2-pyrimidinyl) amino]phenoxy}-N-methyl-2-pyridinecarboxamide
Synonym More Synonyms

 CNX-774 Biological Activity

Description CNX-774 is a potent, selective, and orally available small molecule inhibitor of Btk (IC50< 1 nM) that forms a ligand-directed covalent bond with Cys-481, a non-conserved amino acid within the active site of the enzyme.IC50 Value: <1 nM [1]Target: Btk KinaseIn biochemical assays, CNX-774 has demonstrated potent inhibition of Btk with an IC50 of <1nM in a continuous-read assay. The covalent bonding of CNX-774 to Btk was confirmed by incubating recombinant Btk protein with a 10-fold molar excess of CNX-774 for 1 hour at room temperature and analysis by MALDI-TOF MS. A shift of protein mass corresponding to the molecular weight of CNX-774 confirmed the covalent bonding of CNX-774 to Btk. Digestion of the covalently bonded Btk with pepsin followed by MSMS analysis established the bonding of CNX-774 to Cys-481. Cellular potency as well as prolonged duration of action of CNX-774 was demonstrated in Ramos cells by using a biotinylated covalent probe that targets the same Cysteine residue as CNX-774.CNX-774 was found to be >90% extractable after 2 hrs of incubation in both rat and human whole blood. These results demonstrate that CNX-774 has potent inhibitory activity towards the intended target, Btk, while achieving remarkable specificity in a variety of assays designed to assess off-target reactivity towards abundant cellular thiols and blood proteins.
Related Catalog
References

[1]. Akinleye A, et al. Ibrutinib and novel BTK inhibitors in clinical development. J Hematol Oncol. 2013 Aug 19;6:59.

[2]. In Vitro Reactivity Assessment of Covalent Drugs Targeting Bruton's Tyrosine Kinase

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Molecular Formula C26H22FN7O3
Molecular Weight 499.496
Exact Mass 499.176819
PSA 136.88000
LogP 3.15
Index of Refraction 1.690
Storage condition -20℃

 Safety Information

Hazard Codes N

 Synonyms

4-(4-(4-(3-acrylamidophenylamino)-5-fluoropyrimidin-2-ylamino)phenoxy)-N-methylpicolinamide
Coumarin,7-methoxy-3-phenyl-4-(4-(2-(1-pyrrolidinyl)ethoxy)phenyl)
4-{4-[(4-{[3-(Acryloylamino)phenyl]amino}-5-fluoro-2-pyrimidinyl)amino]phenoxy}-N-methyl-2-pyridinecarboxamide
2-Pyridinecarboxamide, 4-[4-[[5-fluoro-4-[[3-[(1-oxo-2-propen-1-yl)amino]phenyl]amino]-2-pyrimidinyl]amino]phenoxy]-N-methyl-
2H-1-Benzopyran-2-one,7-methoxy-3-phenyl-4-(4-(2-(1-pyrrolidinyl)ethoxy)phenyl)
7-Methoxy-3-phenyl-4-(4-(2-(1-pyrrolidinyl)ethoxy)phenyl)coumarin
4-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-7-methoxy-3-phenyl-2H-chromen-2-one
CNX-774