Various aryl 1‐pyrryl sulfones were synthesized and tested as inhibitors of HIV‐1, 2‐Nitrophenyl‐2‐ethoxycarbonyl‐1‐pyrryl sulfone, the most active among test derivatives, was selected as lead compound of the aryl pyrryl sulfoneseries. The in vitro anti‐HIV‐1 activity and cytotoxicity of 41 compounds is reported. Some structure‐activity relationships are discussed also in comparison with the known