Task: Answer the multiple-choice question.
Query: Which drug exhibits a -10.556% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCCCNC(=O)C1CCN(c2nc(OC)nc(OC)n2)CC1
(b) O=S(=O)(NCCc1ccncc1)c1ccc(Br)cc1
Answer: a. CCCCNC(=O)C1CCN(c2nc(OC)nc(OC)n2)CC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCNC(=O)C1CCN(c2nc(OC)nc(OC)n2)CC1
CCCCNC(=O)C1CCN(c2nc(OC)nc(OC)n2)CC1
N-butyl-1-(4,6-dimethoxy-1,3,5-triazin-2-yl)piperidine-4-carboxamide