The SMILES Cn1c(=O)n2n(c1=O)C1C3C4C3C3C5(COCC135)C42 is from a molecule that displays 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}.