The SMILES O=C1C=CC2CCC1C2 represents a molecule that shows no activity against HIV.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that {#shows|exhibits|displays!} {activity_HIV#no &NULL}{activity_HIV__names__noun}.
bicyclo[3.2.1]oct-3-en-2-one