Task: Answer the multiple choice question.
Question: Which drug has a -26.876\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) CCOC(=O)N1CCN(C(=O)C2CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)CC1
b.) CC(C)(O)c1[nH]c2ccc(C(F)(F)F)cc2c1C(C)(C)O
Answer: a. CCOC(=O)N1CCN(C(=O)C2CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)CC1
{#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)N1CCN(C(=O)C2CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)CC1
CCOC(=O)N1CCN(C(=O)C2CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)CC1
ethyl 4-[1-(4-nitrobenzoyl)piperidine-4-carbonyl]piperazine-1-carboxylate