Task: Answer the multiple choice question.
Question: Which compound exhibits a 4.239\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a COc1ccc(CC(NC(C)=O)C(=O)NC2CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)cc1OC
b O=C(NCCc1ccccn1)c1cc(-c2ccc(Cl)cc2)nc2ccccc12
Answer: a. COc1ccc(CC(NC(C)=O)C(=O)NC2CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)cc1OC
{#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#}
COc1ccc(CC(NC(C)=O)C(=O)NC2CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)cc1OC
COc1ccc(CC(NC(C)=O)C(=O)NC2CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)cc1OC
2-acetamido-3-(3,4-dimethoxyphenyl)-N-[1-(4-nitrobenzoyl)piperidin-4-yl]propanamide