Task: Answer the multiple-choice question.
Query: Which compound exhibits a 14.120\% 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] CCOC(=O)Nc1c(Cl)n(C)c(=O)n(C)c1=O
[b] O=C(NC(=S)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1)c1ccccc1
Answer: a. CCOC(=O)Nc1c(Cl)n(C)c(=O)n(C)c1=O
{#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)Nc1c(Cl)n(C)c(=O)n(C)c1=O
CCOC(=O)Nc1c(Cl)n(C)c(=O)n(C)c1=O
ethyl N-(4-chloro-1,3-dimethyl-2,6-dioxopyrimidin-5-yl)carbamate