The SMILES Cn1c(=O)[nH]c2[nH]c3ccccc3c2c1=O is not active against HIV.
The {#molecule |!}{SMILES__description} {SMILES#} is {activity_HIV#not &NULL}{activity_HIV__names__adjective}.
3-methyl-1,9-dihydropyrimido[4,5-b]indole-2,4-dione