Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a) C[C@@H](NC(=O)Cc1ccc(N2CC[C@H](F)C2)cc1)c1ccc(OCC(F)(F)F)cn1
b) O=C(N1CCc2ncc(C(F)(F)F)cc2C1)[C@@]12CCO[C@@H]1C[C@@H](N1CCC(c3ccccc3)CC1)C2
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_blocker%}
Answer: {%multiple_choice_result}
2-[4-[(3S)-3-fluoropyrrolidin-1-yl]phenyl]-N-[(1R)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]ethyl]acetamide