The SMILES O=C(O)C1CCN(C(=O)COc2ccc3c(c2)oc(=O)c2ccccc23)CC1 is not a human ether-à-go-go related gene (hERG) blocker.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.