Patent Number: 6,252,060

Title: Antiviral liponucleosides: treatment of hepatitis B

Abstract: Compounds for treating hepatitis B infections. The compounds consist of nucleoside analogues having anti-hepatitis B activity which are linked, commonly through a 5' phosphate of the pentose residue, to one of a selected group of lipids. The lipophilic nature of these compounds provides an advantage over the use of the nucleoside analogue alone, making it possible to incorporate them into the lamellar structure of liposomes, either alone or in combination with similar lipid molecules. In the form of appropriately sized liposomes, these anti-hepatitis B agents are preferentially taken up by the liver cells which have been found to harbor the target virus.

Inventors: Hostetler; Karl Y. (Del Mar, CA)

Assignee: NeXstar Pharmaceuticals, Inc.

International Classification: A61K 9/127 (20060101); C07H 19/10 (20060101); C07H 19/16 (20060101); C07H 19/207 (20060101); C07H 15/04 (20060101); C07H 19/06 (20060101); C07H 19/04 (20060101); C07H 19/00 (20060101); C07H 15/00 (20060101); C07H 019/10 (); C07H 019/20 (); A61K 031/70 ()

Expiration Date: 06/26/2018