DS17701585 (Compound 11) is a highly selective, orally active EP300 and CBP inhibitor with IC50 values of 0.15, 0.040, 0.45 and 0.70 µM against CBP, EP300, H3K27 and SOX2. Besides, DS17701585 has the potential for the research of cancer. EP300 and its paralog CBP play an important role in post-translational modification as...