5IDP:
reference: Structure-Based Optimization of Potent, Selective, and Orally Bioavailable CDK8 Inhibitors Discovered by High-Throughput Screening., Czodrowski P, Mallinger A, Wienke D, Esdar C, Poschke O, Busch M, Rohdich F, Eccles SA, Ortiz-Ruiz MJ, Schneider R, Raynaud FI, Clarke PA, Musil D, Schwarz D, Dale T, Urbahns K, Blagg J, Schiemann K, J Med Chem. 2016 Oct 27;59(20):9337-9349. Epub 2016 Oct 7. PMID: 27490956

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