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Diastereoselective Synthesis of 2'-Dihalopyrimidine Ribonucleoside Inhibitors of Hepatitis C Virus Replication.


ABSTRACT: We present a newly developed synthetic route to 2-bromo-2-fluoro ribolactone based on our published 2-chloro-2-fluoro ribolactone synthesis. Stereoselective fluorination is key to controlling the 2-diastereoselectivity. We also report a substantially improved glycosylation reaction with both the 2-bromo-2-fluoro and 2-chloro-2-fluoro sugars. These improvements allowed us to prepare 2'-dihalo nucleosides 13 and 14 in an overall 15-20% yield.

SUBMITTER: Zhou L 

PROVIDER: S-EPMC8756791 | biostudies-literature |

REPOSITORIES: biostudies-literature

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