Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 6.697\% 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)CN1C(=O)CC(c2ccc([N+](=O)[O-])cc2)C1=O
(b) Cc1nn(Cc2ccccc2)c(C)c1C(=O)O
Answer: a. CCOC(=O)CN1C(=O)CC(c2ccc([N+](=O)[O-])cc2)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)CN1C(=O)CC(c2ccc([N+](=O)[O-])cc2)C1=O
CCOC(=O)CN1C(=O)CC(c2ccc([N+](=O)[O-])cc2)C1=O
ethyl 2-[3-(4-nitrophenyl)-2,5-dioxopyrrolidin-1-yl]acetate