Structure-Based Design and Synthesis of 3-Amino-1,5-dihydro-4H-pyrazolopyridin-4-one Derivatives as Tyrosine Kinase 2 Inhibitors.
Yogo, T., Nagamiya, H., Seto, M., Sasaki, S., Shih-Chung, H., Ohba, Y., Tokunaga, N., Lee, G.N., Rhim, C.Y., Yoon, C.H., Cho, S.Y., Skene, R., Yamamoto, S., Satou, Y., Kuno, M., Miyazaki, T., Nakagawa, H., Okabe, A., Marui, S., Aso, K., Yoshida, M.(2016) J Med Chem 59: 733-749
- PubMed: 26701356 
- DOI: 10.1021/acs.jmedchem.5b01857
- Primary Citation of Related Structures:  
5F1Z, 5F20 - PubMed Abstract: 
We report herein the discovery and optimization of 3-amino-1,5-dihydro-4H-pyrazolopyridin-4-one TYK2 inhibitors. High-throughput screening against TYK2 and JAK1-3 provided aminoindazole derivative 1 as a hit compound. Scaffold hopping of the aminoindazole core led to the discovery of 3-amino-1,5-dihydro-4H-pyrazolopyridin-4-one derivative 3 as a novel chemotype of TYK2 inhibitors ...