The SMILES Cn1c2ccccc2c2ccc3c(c21)C(=O)c1ccc2c4ccccc4n(C)c2c1C3=O represents a molecule that exhibits 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}.