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While Cereblon molecular glue degraders containing glutarimide scaffolds have been approved for treatment of multiple myeloma and acute myeloid leukemia, the design of new therapeutically relevant monovalent degraders remains challenging. We report here an approach to glutarimide-containing molecular glue synthesis using multicomponent reactions as a central modular core-forming step. Screening the resulting library identified HRZ-01 derivatives that target casein kinase 1 alpha (CK1\u03b1) and Wee-like protein kinase (WEE1). Further medicinal chemistry efforts led to identification of selective monovalent WEE1 degraders that provide a potential starting point for the eventual development of a selective chemical degrader probe. The structure of the hit WEE1 degrader complex with CRBN-DDB1 and WEE1 provides a model of the protein-protein interface and a rationale for the observed kinase selectivity. Our findings suggest that modular synthetic routes combined with in-depth structural characterization give access to selective molecular glue degraders and expansion of the CRBN-degradable proteome.<\/jats:p>","DOI":"10.1101\/2024.05.04.592550","type":"posted-content","created":{"date-parts":[[2024,5,5]],"date-time":"2024-05-05T05:35:18Z","timestamp":1714887318000},"source":"Crossref","is-referenced-by-count":4,"title":["Discovery of CRBN-dependent WEE1 Molecular Glue Degraders from a Multicomponent Combinatorial 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