Problem statement: Answer the MCQ question.
Query: Which compound exhibits a 12.722\% 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(CCl)Nc1cc2[nH]c(=O)[nH]c2cc1Br
b. CCOc1cc(N2CCOCC2)c(OCC)cc1NC(=O)c1ccc(NC(C)=O)cc1
Answer: a. O=C(CCl)Nc1cc2[nH]c(=O)[nH]c2cc1Br
{#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#}
O=C(CCl)Nc1cc2[nH]c(=O)[nH]c2cc1Br
O=C(CCl)Nc1cc2[nH]c(=O)[nH]c2cc1Br
N-(6-bromo-2-oxo-1,3-dihydrobenzimidazol-5-yl)-2-chloroacetamide