Discovery of Novel Pyrimidine Derivatives as Human Pin1 Covalent Inhibitors.
Tian, M., Wang, X., Tang, G., Cui, G., Zhou, J., Jin, J., Xu, B.(2025) ACS Med Chem Lett 16: 101-108
- PubMed: 39811131 
- DOI: https://doi.org/10.1021/acsmedchemlett.4c00477
- Primary Citation of Related Structures:  
9INP - PubMed Abstract: 
Pin1 (peptidyl-prolyl cis-trans isomerase NIMA-interacting 1) is a unique peptidyl-prolyl isomerase (PPIase), and inactivation of Pin1 with a covalent inhibitor is a potential strategy for developing anticancer agents. Herein, a series of sulfolane amino-substituted 2-chloro-5-nitropyrimidine derivatives were disclosed as structurally distinct covalent inhibitors toward Pin1, which were validated for their covalent binding to Cys113 of Pin1 by X-ray cocrystal structures of compounds 4a (IC 50 = 11.55 μM) and 6a (IC 50 = 3.15 μM). This work provided a new approach for covalent inhibition of Pin1 by taking advantage of the 2-chloro-5-nitropyrimidine as the electrophilic warhead, which might benefit the discovery of potent and drug-like Pin1 inhibitors.
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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