Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CC(C)(C)C(=O)N1CCN(c2ccc(OCCCN3CCCCC3)cc2)C(=O)C1
b. O=C(NCC1CCN(Cc2ccc(Br)nc2)CC1)c1cc(Cl)cc(Cl)c1
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}
4-(2,2-dimethylpropanoyl)-1-[4-(3-piperidin-1-ylpropoxy)phenyl]piperazin-2-one