The molecule with the SMILES representation of Clc1cc2n[se]nc2cc1Cl displays no activity against HIV.
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} {#shows|exhibits|displays!} {activity_HIV#no &NULL}{activity_HIV__names__noun}.
5,6-dichloro-2,1,3-benzoselenadiazole