Lymphoid-specific tyrosine phosphatase (LYP), a member of the protein tyrosine phosphatase (PTP) family of signaling enzymes, is associated with a broad spectrum of autoimmune diseases. Herein we describe our structure-based lead optimization efforts within a 6-hydroxy-benzofuran-5-carboxylic acid series culminating in the identification of compound 8b, a potent and selective inhibitor of LYP with a K i value of 110 nM and more ...
[Malolanarasimhan, Krishnan; Kedei, Noemi; Sigano, Dina M.; Kelley, James A.; Lai, Christopher C.; Lewin, Nancy E.; Surawski, Robert J.; Pavlyukovets, Vladimir A.; Garfield, Susan H.; Wincovitch, Stephen; Blumberg, Peter M.; Marquez, Victor E. Journal of Medicinal Chemistry, 2007 , vol. 50, # 5 p. 962 - 978]