Optimization of Fused Bicyclic Allosteric SHP2 Inhibitors

Autor: Movarid Mohseni, Michelle Fodor, Jorge Garcia Fortanet, Shumei Liu, Laura R. LaBonte, Rukundo Ntaganda, Jeffrey T. Bagdanoff, Sarah Williams, Robert Koenig, Travis Stams, Ho Man Chan, Michael Dore, Christopher Towler, Matthew J. LaMarche, Brant Firestone, Ping Wang, Troy Smith, Michael G. Acker, Murphy Hentemann, Ying-Nan Chen, Patrick James Sarver, Hongyun Wang, Stan Spence, Martin Sendzik, Mitsunori Kato, Zhouliang Chen
Rok vydání: 2019
Předmět:
Zdroj: Journal of medicinal chemistry. 62(4)
ISSN: 1520-4804
Popis: SHP2 is a nonreceptor protein tyrosine phosphatase within the mitogen-activated protein kinase (MAPK) pathway controlling cell growth, differentiation, and oncogenic transformation. SHP2 also participates in the programed cell death pathway (PD-1/PD-L1) governing immune surveillance. Small-molecule inhibition of SHP2 has been widely investigated, including in our previous reports describing SHP099 (2), which binds to a tunnel-like allosteric binding site. To broaden our approach to allosteric inhibition of SHP2, we conducted additional hit finding, evaluation, and structure-based scaffold morphing. These studies, reported here in the first of two papers, led to the identification of multiple 5,6-fused bicyclic scaffolds that bind to the same allosteric tunnel as 2. We demonstrate the structural diversity permitted by the tunnel pharmacophore and culminated in the identification of pyrazolopyrimidinones (e.g., SHP389, 1) that modulate MAPK signaling in vivo. These studies also served as the basis for further scaffold morphing and optimization, detailed in the following manuscript.
Databáze: OpenAIRE