The SMILES CC(C)(C)[Si](C)(C)OC(C(=O)OC1C=CCCC1)C(NC(=O)c1ccccc1)c1ccccc1 is not active against HIV.
The {#molecule |!}{SMILES__description} {SMILES#} is {activity_HIV#not &NULL}{activity_HIV__names__adjective}.