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Peer-Reviewed Publication
J Med Chem2026;69(8):9142-9162.April 23, 2026Journal Article

Nanoscale Direct-to-Biology Optimization of Cdk2 Inhibitors.

James L Douthwaite1, Damian J Houde2, Eneida Pardo2, Mark Moran2, Jason Baird2, Sophia R Meyer1, Babak Mahjour1, Qiyuan Zhao1, Jay F Larrow2, Yu-Pu Juang1, Michael J Holliday2, Calvin Han2, Brian Kelley2, David Dunstan2, Katelyn Billings2, Mary M Mader2, Alexander M Taylor2, Jonathan Z Sexton1,3, Alessandro A Boezio2, Tim Cernak1
1Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States.
2Relay Therapeutics, 60 Hampshire Street, Cambridge, Massachusetts 02139, United States.
3Department of Internal Medicine, Gastroenterology and Hepatology, Michigan Medicine at the University of Michigan, Ann Arbor, Michigan 48109, United States.

Abstract

Modern hit-to-lead optimization winnows down vast chemical spaces of virtual compounds into a selection of potent and selective compounds that can be further profiled with in vitro assays. Today, miniaturized chemical synthesis can be performed in high-throughput, shifting the bottleneck to compound purification. Direct-to-biology (D2B) approaches seek to overcome this hurdle by omitting the purif…

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