The molecule with the SMILES C=C(CCCC(C)OC(=O)NC(C)c1cccc2ccccc12)[Si](C)(C)C shows no activity against HIV.
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} {#shows|exhibits|displays!} {activity_HIV#no &NULL}{activity_HIV__names__noun}.