4HGE:
reference: Discovery of potent and selective pyrazolopyrimidine janus kinase 2 inhibitors., Hanan EJ, van Abbema A, Barrett K, Blair WS, Blaney J, Chang C, Eigenbrot C, Flynn S, Gibbons P, Hurley CA, Kenny JR, Kulagowski J, Lee L, Magnuson SR, Morris C, Murray J, Pastor RM, Rawson T, Siu M, Ultsch M, Zhou A, Sampath D, Lyssikatos JP, J Med Chem. 2012 Nov 26;55(22):10090-107. doi: 10.1021/jm3012239. Epub 2012 Oct, 24. PMID: 23061660

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