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Instruments / Technical Area	Publication Details	Published	Actions
I02-Macromolecular Crystallography	Discovery of S64315, a potent and selective Mcl-1 inhibitor Zoltan Szlavik , Marton Csekei , Attila Paczal , Zoltan B. Szabo , Szabolcs Sipos , Gabor Radics , Agnes Proszenyak , Balazs Balint , James Murray , James Davidson , Ijen Chen , Pawel Dokurno , Allan E Surgenor , Zoe Marie Daniels , Roderick E. Hubbard , Gaëtane Le Toumelin-Braizat , Audrey Claperon , Gaëlle Lysiak-Auvity , Anne-Marie Girard , Alain Bruno , Maia Chanrion , Frédéric Colland , Ana-Leticia Maragno , Didier Demarles , Olivier Geneste , Andras Kotschy Journal Of Medicinal Chemistry DOI: 10.1021/acs.jmedchem.0c01234 Diamond Proposal Number(s): [2103] Show Abstract ▼ Abstract: Myeloid cell leukemia 1 (Mcl-1) has emerged as an attractive target for cancer therapy. It is an antiapoptotic member of the Bcl-2 family of proteins, whose upregulation in human cancers is associated with high tumor grade, poor survival, and resistance to chemotherapy. Here we report the discovery of our clinical candidate S64315, a selective small molecule inhibitor of Mcl-1. Starting from a fragment derived lead compound, we have conducted structure guided optimization that has led to a significant (3 log) improvement of target affinity as well as cellular potency. The presence of hindered rotation along a biaryl axis has conferred high selectivity to the compounds against other members of the Bcl-2 family. During optimization, we have also established predictive PD markers of Mcl-1 inhibition and achieved both efficient in vitro cell killing and tumor regression in Mcl-1 dependent cancer models. The preclinical candidate has drug-like properties that have enabled its development and entry into clinical trials.	Nov 2020

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I02-Macromolecular Crystallography

Discovery of S64315, a potent and selective Mcl-1 inhibitor