The SMILES Nc1nc2ncc(CNc3ccc(C(=O)N[C@@H](CCC(=O)O)C(=O)O)cc3)nc2c(=O)[nH]1 is from a molecule that shows no activity against COVID19.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that {#shows|exhibits|displays!} {activity_SARSCoV2#no &NULL}{activity_SARSCoV2__names__noun}.