Task: Answer the multiple-choice question.
Query: Which compound has a 16.253\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a O=C(COc1ccc2ccccc2c1Br)NCc1ccccn1
b CCCCNS(=O)(=O)c1ccc2nc(SCC(=O)c3ccc(C#N)cc3)[nH]c2c1
Answer: a. O=C(COc1ccc2ccccc2c1Br)NCc1ccccn1
{#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#}
2-(1-bromonaphthalen-2-yl)oxy-N-(pyridin-2-ylmethyl)acetamide