Based on the SMILES CCOC(=O)C=C1SC12C(C)(C)CCCC2(C)C, the molecule shows no activity against the human immunodeficiency virus.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule {#shows|exhibits|displays!} {activity_HIV#no &NULL}{activity_HIV__names__noun}.
ethyl 2-(4,4,8,8-tetramethyl-1-thiaspiro[2.5]octan-2-ylidene)acetate