KSQ-4279

Chemical Information
USP1 inhibitor KSQ-4279 is an orally bioavailable selective inhibitor of the ubiquitin specific protease 1 (USP1), with apoptosis-inducing, tumor-sensitizing and antineoplastic activities. Upon oral administration, USP1 inhibitor KSQ-4279 specifically binds to and inhibits the activity of USP1, thereby blocking USP1-mediated deubiquitylating activity. This blocks the ubiquitin proteasome degradation pathway, prevents the degradation of defective proteins, and leads to an accumulation of mono-ubiquinated substrates. This induces the unfolded protein response (UPR). This may induce cell cycle arrest, reduce the expression of certain anti-apoptotic proteins, induce tumor cell apoptosis, inhibit tumor cell growth, and may sensitize tumor cells to DNA-targeting chemotherapeutics. USP1, a deubiquitinating enzyme overexpressed in various tumor cell types, plays a key role in the correct folding and deubiquitination of proteins and facilitates DNA repair via its role regulating the Fanconi anemia complex and translesion synthesis.
| CAS Number | 2446480-97-1 |
| PubChem CID | 150782011 |
| IUPAC Name | 6-(4-cyclopropyl-6-methoxypyrimidin-5-yl)-1-[[4-[1-propan-2-yl-4-(trifluoromethyl)imidazol-2-yl]phenyl]methyl]pyrazolo[3,4-d]pyrimidine |
| Molecular Formula | C27H25F3N8O |
| Molecular Weight | 534.5 |
| XLogP | 4 |
| Topological Polar Surface Area | 96.4 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 10 |
| Rotatable Bond Count | 7 |
| Heavy Atom Count | 39 |
| Formal Charge | 0 |
| Complexity | 823 |
| Property | Value |
|---|---|
| Molecular Weight | 534.5 |
| XLogP3 | 4 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 10 |
| Rotatable Bond Count | 7 |
| Exact Mass | 534.21034194 |
| Monoisotopic Mass | 534.21034194 |
| Topological Polar Surface Area | 96.4 Ų |
| Heavy Atom Count | 39 |
| Formal Charge | 0 |
| Complexity | 823 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
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