D-Alanine Ester of Sp-Nucleoside Analog

摘要

Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents. In certain embodiments, provided herein is an isolated compound according to Formula Ib: or a pharmaceutically acceptable salt or solvate thereof.