Aminopyrazole Carboxamide Bruton’s Tyrosine Kinase Inhibitors. Irreversible to Reversible Covalent Reactive Group Tuning
作者:Mark E. Schnute、Stephen E. Benoit、Ingrid P. Buchler、Nicole Caspers、Margaret L. Grapperhaus、Seungil Han、Rajeev Hotchandani、Nelson Huang、Robert O. Hughes、Brian M. Juba、Kyung-Hee Kim、Erica Liu、Erin McCarthy、Dean Messing、Joy S. Miyashiro、Shashi Mohan、Thomas N. O’Connell、Jeffrey F. Ohren、Mihir D. Parikh、Michelle Schmidt、Shaun R. Selness、John R. Springer、Venkataraman Thanabal、John I. Trujillo、Daniel P. Walker、Zhao-Kui Wan、Jane M. Withka、Arthur J. Wittwer、Nancy L. Wood、Li Xing、Christoph W. Zapf、John Douhan
DOI:10.1021/acsmedchemlett.8b00461
日期:2019.1.10
Potent covalent inhibitors of Bruton's tyrosine kinase (BTK) based on an aminopyrazole carboxamide scaffold have been identified. Compared to acrylamide-based covalent reactive groups leading to irreversible protein adducts, cyanamide-based reversible-covalent inhibitors provided the highest combined BTK potency and EGFR selectivity. The cyanamide covalent mechanism with BTK was confirmed through enzyme kinetic, NMR, MS, and X-ray crystallographic studies. The lead cyanamide-based inhibitors demonstrated excellent kinome selectivity and rat pharmaco-kinetic properties.