6FC8:
reference: Adventures in Scaffold Morphing: Discovery of Fused Ring Heterocyclic Checkpoint Kinase 1 (CHK1) Inhibitors., Yang B, Vasbinder M, Hird AW, Su Q, Wang H, Yu Y, Toader D, Lyne PD, Read JA, Breed J, Ioannidis S, Deng C, Grondine M, DeGrace N, Whitston D, Brassil P, Janetka JW, J Med Chem. 2018 Jan 4. doi: 10.1021/acs.jmedchem.7b01490. PMID: 29301085

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