Task: Answer the multiple choice question.
Query: Which compound has a 4.045\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. COc1ccccc1-c1noc(-c2ccco2)n1
b. O=C(NC(=S)Nc1ncc(Br)cc1Br)c1cncc(Br)c1
Answer: b. O=C(NC(=S)Nc1ncc(Br)cc1Br)c1cncc(Br)c1
{#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#}
5-bromo-N-[(3,5-dibromopyridin-2-yl)carbamothioyl]pyridine-3-carboxamide