Task: Answer the multiple-choice question.
Question: Which compound has a 6.312\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCOC(=O)c1sc(NC(=O)CN2C(=O)NC3(CCC(C)CC3)C2=O)c(C(=O)OCC)c1C
b: CCOC(=O)c1ccc([N+](=O)[O-])cc1NC(C)=O
Answer: b. CCOC(=O)c1ccc([N+](=O)[O-])cc1NC(C)=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)c1ccc([N+](=O)[O-])cc1NC(C)=O
CCOC(=O)c1ccc([N+](=O)[O-])cc1NC(C)=O
ethyl 2-acetamido-4-nitrobenzoate