The molecule SMILES O[Si](c1ccc(C(F)(F)F)cc1)(c1cccc(C(F)(F)F)c1)c1cccc(C(F)(F)F)c1 is not active against HIV.
The {#molecule |!}{SMILES__description} {SMILES#} is {activity_HIV#not &NULL}{activity_HIV__names__adjective}.