Monday, May 17, 2021

Refinement of Covalent EGFR Inhibitor AZD9291 to Eliminate Off-target Activity

Elise Bouffard, Balyn W Zaro, Melissa MD Dix, Benjamin Cravatt, Chi-HueyWong

Tetrahedron Letters, 2021

https://doi.org/10.1016/j.tetlet.2021.153178

Non-small-cell lung cancer (NSCLC) is a major disease that accounts for 85% of all lung cancer cases which claimed around 1.8 billion lives worldwide in 2020. Tyrosine kinase inhibitors (TKIs) that target EGFR have been used for the treatment of NSCLC, but often develop drug resistance, and the covalent inhibitor AZD9291 has been developed to tackle the problem of drug resistance mediated by the T790M EGFR mutation; however, there is a side effect of hyperglycemia that may be due to off-target activity. This study examines analogues of AZD9291 by chemical proteomics, identifying analogues that maintain T790M-EGFR engagement while showing reduced cross-reactivity with off-targets.



Targeting KRAS Diversity: Covalent Modulation of G12X and Beyond in Cancer Therapy

Tonia Kirschner, Matthias P. Müller, and Daniel Rauh Journal of Medicinal Chemistry   2024 DOI: 10.1021/acs.jmedchem.3c02403 The GTPase KRAS...