The SMILES O=C(O)[C@@H]1CCCN1S(=O)(=O)c1cccc2cccnc12 is not a hERG blocking compound (IC50 less than 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.