The SMILES Cc1ccnc2nc(C(=O)OCC(=O)N(CC(C)C)CC(C)C)nn12 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.