The SMILES Clc1ccc2nc3nc(-c4ccccc4)c(-c4ccccc4)nc3nc2c1 represents a molecule that shows no activity against HIV.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that {#shows|exhibits|displays!} {activity_HIV#no &NULL}{activity_HIV__names__noun}.