The SMILES Cc1cccc(NC2=C(NC(=O)c3ccccc3)C(=O)c3ccccc3C2=O)c1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.