Task: Answer the multiple-choice question.
Question: Which compound exhibits a 4.395\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] CCN(C(=O)Cn1cnc2ccccc2c1=O)C1CCS(=O)(=O)C1
[b] O=C(COC(=O)CC(c1ccccc1)c1ccccc1)NCc1ccc(Cl)cc1
Answer: a. CCN(C(=O)Cn1cnc2ccccc2c1=O)C1CCS(=O)(=O)C1
{#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#}
CCN(C(=O)Cn1cnc2ccccc2c1=O)C1CCS(=O)(=O)C1
CCN(C(=O)Cn1cnc2ccccc2c1=O)C1CCS(=O)(=O)C1
N-(1,1-dioxothiolan-3-yl)-N-ethyl-2-(4-oxo-quinazolin-3-yl)acetamide