The SMILES O=C1OS(=O)(=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}.
1,1-dioxo-2,1λ6-benzoxathiol-3-one