Discovery of (R)-6-cyclopentyl-6-(2-(2,6-diethylpyridin-4-yl)ethyl)-3-((5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl)-4-hydroxy-5,6-dihydropyran-2-one (PF-00868554) as a potent and orally available hepatitis C virus polymerase inhibitor.
Li, H., Tatlock, J., Linton, A., Gonzalez, J., Jewell, T., Patel, L., Ludlum, S., Drowns, M., Rahavendran, S.V., Skor, H., Hunter, R., Shi, S.T., Herlihy, K.J., Parge, H., Hickey, M., Yu, X., Chau, F., Nonomiya, J., Lewis, C.(2009) J Med Chem 52: 1255-1258
- PubMed: 19209845 
- DOI: 10.1021/jm8014537
- Primary Citation of Related Structures:  
3FRZ - PubMed Abstract: 
The HCV RNA-dependent RNA polymerase has emerged as one of the key targets for novel anti-HCV therapy development. Herein, we report the optimization of the dihydropyrone series inhibitors to improve compound aqueous solubility and reduce CYP2D6 inhibition, which led to the discovery of compound 24 (PF-00868554) ...