Task: Answer the MCQ question.
Question: Which compound exhibits a 13.870\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=C1CCC(C(=O)N2CCCCO2)CN1CCc1ccccc1
b: COC(=O)CCC(=O)Nc1cccc([N+](=O)[O-])c1
Answer: b. COC(=O)CCC(=O)Nc1cccc([N+](=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#}
COC(=O)CCC(=O)Nc1cccc([N+](=O)[O-])c1
COC(=O)CCC(=O)Nc1cccc([N+](=O)[O-])c1
methyl 4-(3-nitroanilino)-4-oxobutanoate