The SMILES COC(=O)C(C)Sc1nnc2n(-c3cccc(C)c3)c(=O)c3c4c(sc3n12)CCCC4 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}.