Synthesis and SAR Study of Carbamoyl Pyridone Bicycle Derivatives as Potent Inhibitors of Influenza Cap-dependent Endonuclease

Autor: Yoshiyuki Taoda, Toshiyuki Akiyama, Tomokazu Yoshinaga, Masayoshi Miyagawa, Kenji Tomita, Kenji Takaya, Kazunari Hattori, Shinya Shano, Takao Shishido, Akihiko Sato, Kazuya Yasuo, Makoto Kawai, Ryu Yoshida, Chika Takahashi-Kageyama
Rok vydání: 2019
Předmět:
Zdroj: Journal of Medicinal Chemistry. 62:8101-8114
ISSN: 1520-4804
0022-2623
Popis: The medicinal chemistry and structure-activity relationships (SAR) for a novel series of carbamoyl pyridone bicycle (CAB) compounds as influenza Cap-dependent endonuclease (CEN) inhibitors are disclosed. Substituent effects were evaluated at the C (N)-1, N-3, and C-7 positions of the CAB ring system using a docking study. Submicromolar EC50 values were achieved in the cellular assay with C-7-unsubstituted CAB which possessed a benzhydryl group on either the C-1 or the N-1 position. An N-3 substituent was found to be critical for the plasma protein binding effect in vitro, and the CAB-N analogue 2v exhibited reasonable total clearance (CLtot). More importantly, compound 2v displayed significant efficacy in a mouse model infected with influenza viruses.
Databáze: OpenAIRE