Task: Answer the MCQ question.
Query: Which compound has a 5.136\% 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] Cc1cc(C)n(-c2ccc(C(=O)OCC(=O)NCc3ccc(F)cc3)cc2)n1
[b] CCOC(=O)C1CCN(C(=O)c2cc3cc(Br)ccc3oc2=O)CC1
Answer: b. CCOC(=O)C1CCN(C(=O)c2cc3cc(Br)ccc3oc2=O)CC1
{#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#}
CCOC(=O)C1CCN(C(=O)c2cc3cc(Br)ccc3oc2=O)CC1
CCOC(=O)C1CCN(C(=O)c2cc3cc(Br)ccc3oc2=O)CC1
ethyl 1-(6-bromo-2-oxochromene-3-carbonyl)piperidine-4-carboxylate