The SMILES O=C1OC(C2Cc3ccc4ccccc4c3C2=O)c2ccccc21 is from a molecule that exhibits 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}.
3-(1-oxo-2,3-dihydrocyclopenta[a]naphthalen-2-yl)-3H-2-benzofuran-1-one