| 摘要 |
<p>Antivirally active compounds of the formula <CHEM> wherein: R<1> is hydrogen, hydroxy, mercapto or amino; R<2> is hydrogen, hydroxy, fluoro, chloro or amino; R<3> and R<4> are independently selected from - @(OM)2, <CHEM> amino, hydroxy or an ether or ester residue thereof, or R<3> together with R<4> is <CHEM> wherein M is hydrogen or a pharmaceutically acceptable counterion; and n is 1 or 2; with the proviso that, when R<2> is amino and R<3> and R<4> are hydroxy, R<1> is not hydroxy and in addition, when n = 1, R<1> is not hydrogen, and pharmaceutically acceptable salts thereof; processes and preparation of said compounds, a pharmaceutical composition comprising said compounds, methods for treatment of virus infections as well as use of compounds of the formula I without the proviso for the manufacture of a medicament for treatment of AIDS.</p> |
