GDC-0077

Chemical Information
PIK3CA is one of the most frequently mutated oncogenes, with the resulting mutated p110α protein it encodes playing a central role in tumor cell proliferation. Chemotherapeutic agents targeting the PI3K p110α catalytic subunit have shown antitumor activity and a manageable safety profile - some of which are in clinical use, like [alpelisib] - but preclinical studies have shown that PI3K pathway inhibition releases negative feedback and activates receptor tyrosine kinase signaling, reengaging the pathway and attenuating drug activity. Newer PI3K inhibitors, like inavolisib, seek to mitigate this attenuation. Inavolisib is an inhibitor of PI3Kα that was approved by the FDA in October 2024 for the treatment of certain patients with advanced breast cancers. In February 2025, it was approved by Health Canada for the same indication.
| CAS Number | 2060571-02-8 |
| PubChem CID | 124173720 |
| IUPAC Name | (2S)-2-[[2-[(4S)-4-(difluoromethyl)-2-oxo-1,3-oxazolidin-3-yl]-5,6-dihydroimidazo[1,2-d][1,4]benzoxazepin-9-yl]amino]propanamide |
| Molecular Formula | C18H19F2N5O4 |
| Molecular Weight | 407.4 |
| XLogP | 1.5 |
| Topological Polar Surface Area | 112 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 5 |
| Heavy Atom Count | 29 |
| Formal Charge | 0 |
| Complexity | 641 |
| Property | Value |
|---|---|
| Molecular Weight | 407.4 |
| XLogP3 | 1.5 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 5 |
| Exact Mass | 407.14051043 |
| Monoisotopic Mass | 407.14051043 |
| Topological Polar Surface Area | 112 Ų |
| Heavy Atom Count | 29 |
| Formal Charge | 0 |
| Complexity | 641 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 2 |
| 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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