Problem statement: Answer the multiple choice question.
Question: Which drug has a 4.268\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a.) CCN(CC)S(=O)(=O)c1ccc(NC(=O)C2CCCO2)cc1
b.) O=C(Nc1ccccc1N1CCN(C(=O)c2ccccc2)CC1)c1cc(Br)ccc1Cl
Answer: b. O=C(Nc1ccccc1N1CCN(C(=O)c2ccccc2)CC1)c1cc(Br)ccc1Cl
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__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_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
N-[2-(4-benzoylpiperazin-1-yl)phenyl]-5-bromo-2-chlorobenzamide