Onkure Therapeutics Inc. has disclosed new benzopyridinones acting as phosphatidylinositol 3-kinase α (PI3Kα) mutant inhibitors potentially useful for the treatment of cancer, congenital lipomatous overgrowth, vascular malformations, epidermal naevi and skeletal abnormalities, scoliosis and PIK3CA-related overgrowth spectrum (PROS).