The molecule with the SMILES O=C(OCn1nnc2ccccc2c1=O)c1ccc2c(=O)n3c(nc2c1)CCC3 is not a hERG blocking compound (IC50 less than 10uM).
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.