Antiviral composition

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/70 (2006.01) A61K 31/505 (2006.01) A61K 31/52 (2006.01) A61K 31/7068 (2006.01)

Patent

CA 2063417

A therapeutic composition comprising a combination of a 3'-fluoro-2',3'- dideoxy-nucleoside compound (1) of formula (I), wherein B is adenine, thymine, guanine, cytosine, inosine, uracil, 5- ethyluracil, 2,6-diaminopurine; and a 2',3'-dideoxynucleoside compound (II) of formula (II), wherein X is N3 or H or together with Y an additional carbon-carbon bond, Y and Z are independently H, OH or F, and B is adenine, thymine, guanine, cytosine, inosine, uracil, 5-ethyluracil, 2,6-diaminopurine, in a ratio giving a synergistic antiviral effect. The composition can be used in the treatment o prophylaxis of infections caused by viruses using reverse transcriptase for replication, especially HIV infections and AIDS.

Une composition théraputique comportant une combinaison d'un composé 3'-fluoro-2',3'-didésoxy-nucléoside dont la formule est (I), dans laquelle B représente adénine, thymine, guanine, cytosine, inosine, uracile, 5-éthyluracile, 2,6-diaminopurine; et d'un composé 2',3'-didésoxynucléoside dont la formule est (II), dans laquelle X est N3 ou H ou forme avec Y une liaison carbone-carbone supplémentaire, Y et Z sont indépendamment H, OH ou F, et B représente adénine, thymine, guanine, cytosine, inosine, uracile, 5-éthyluracile, 2,6-diaminopurine, dans un rapport présentant un effet antiviral synergique. La composition peut être utilisée pour le traitement ou la prophylaxie des infections causées par des virus employant la transcriptase inverse pour la réplication, notamment les infections de HIV et le SIDA.

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