Based on the SMILES representation C[Si](C)(C)OC1(C#N)C2C3CC4C2C(=O)C2C4C3C21, 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}.