Nucleoside analog inhibitors of reverse transcriptase

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Carbohydrate doai

Reexamination Certificate

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C514S046000, C514S049000, C514S050000, C536S027200, C536S027300, C536S027810, C536S028530, C536S028540

Reexamination Certificate

active

07550442

ABSTRACT:
Compounds of formula (XXIII), or pharmaceutically acceptable salts or esters thereof, are inhibitors of reverse transcriptase:R4is a nucleoside with Q substituting a 3′ hydroxyl group, and Q is a moiety of formulas (XXIV)-(XXXII):

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