Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 13.067\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. Cn1c(=O)n(C)c2ncc(Br)cc21
b. Cc1ccc(-c2sc(-c3ccccc3)nc2CC(=O)Nc2ccccc2F)cc1
Answer: a. Cn1c(=O)n(C)c2ncc(Br)cc21
{#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#}
Cn1c(=O)n(C)c2ncc(Br)cc21
Cn1c(=O)n(C)c2ncc(Br)cc21
6-bromo-1,3-dimethylimidazo[4,5-b]pyridin-2-one