5HA9:
reference: Crystal structure-based discovery of a novel synthesized PARP1 inhibitor (OL-1) with apoptosis-inducing mechanisms in triple-negative breast cancer., Fu L, Wang S, Wang X, Wang P, Zheng Y, Yao D, Guo M, Zhang L, Ouyang L, Sci Rep. 2016 Dec 5;6(1):3. doi: 10.1038/s41598-016-0007-2. PMID: 28442756

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