НУКЛЕОЗИДНЫЕ ИНГИБИТОРЫ I ОБРАТНОЙ ТРАНСКРИПТАЗЫ,ПРЕДНАЗНАЧЕННЫЕ ДЛЯ ЛЕЧЕНИЯ ЗАБОЛЕВАНИЙ, ОПОСРЕДОВАННЫХ ВИЧ

摘要

This invention relates to methods of treating an HIV infection with novel heterocyclic compounds of formula I wherein R¹-R⁴, X¹ and X² are as defined in the summary and pharmaceutically acceptable salts, and methods to inhibit or modulate Human Immunodeficiency Virus (HIV) reverse transcriptase with compounds of formula I.