The SMILES COC(=O)c1nc2n(n1)C(c1ccc(OC)c(OC)c1OC)C1=C(CCCC1=O)N2 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.