| abstract |
The present invention is concerned with antiretroviral (e.g. anti-HIV-1) compounds having formula (I), wherein R1 and R2 each independently are halo or methyl; R3 is hydrogen, halo, nitro or trifluoromethyl; R4 is trifuloromethyl or methylcarbonyl; or a radical -C(=X)-NR5R6 wherein X is 0 or S, and R5 and R6 each independently are hydrogen or C1-4alkyl; or a radical -Alk-R7, wherein Alk is C1-4alkanediyl; and R7 is hydrogen or hydroxy; Het is a heterocycle radical of formulae (a); (b); (c); (d) or (e). Pharmaceutical compositions containing said compounds of formula (I) and processes of preparing said compounds and compositions. |