The molecule SMILES O=C(O)C12CC3CC(C1)CC(n1ncc(N4CCN(c5ccccc5)CC4)c(Cl)c1=O)(C3)C2 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}.