Based on the SMILES representation Cn1c(=O)c2c3ccccc3n(C)c2n(C)c1=O, the molecule shows no activity against HIV.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule {#shows|exhibits|displays!} {activity_HIV#no &NULL}{activity_HIV__names__noun}.
1,3,9-trimethylpyrimido[4,5-b]indole-2,4-dione