The SMILES C[Si](C)(C)C1=C2C(=O)c3ccccc3C(=O)C2=C([Si](C)(C)C)C2CCCCC12 is not active against the human immunodeficiency virus.
The {#molecule |!}{SMILES__description} {SMILES#} is {activity_HIV#not &NULL}{activity_HIV__names__adjective}.