The SMILES Cn1c(=O)[nH]c(=O)c2[nH]c(=O)c(=O)n(C)c21 is from a molecule that shows no activity against the human immunodeficiency virus.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that {#shows|exhibits|displays!} {activity_HIV#no &NULL}{activity_HIV__names__noun}.