The SMILES NC(=O)C(=CN1CC(=O)NC1=S)C(N)=O 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}.
2-[(4-oxo-2-sulfanylideneimidazolidin-1-yl)methylidene]propanediamide