The SMILES Cn1c(=O)[nH]c2[nH]c3ccccc3c2c1=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}.
3-methyl-1,9-dihydropyrimido[4,5-b]indole-2,4-dione