3IBE:
reference: ATP-Competitive Inhibitors of the Mammalian Target of Rapamycin: Design and Synthesis of Highly Potent and Selective Pyrazolopyrimidines., Zask A, Verheijen JC, Curran K, Kaplan J, Richard DJ, Nowak P, Malwitz DJ, Brooijmans N, Bard J, Svenson K, Lucas J, Toral-Barza L, Zhang WG, Hollander I, Gibbons JJ, Abraham RT, Ayral-Kaloustian S, Mansour TS, Yu K, J Med Chem. 2009 Jul 31. PMID: 19645448

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