Task: Answer the MCQ question.
Question: Which drug exhibits a 13.893\% 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) Cc1c(C(=O)N2CCN(Cc3ccc4c(c3)OCO4)CC2)cccc1[N+](=O)[O-]
(b) CCOc1ccccc1NC(=O)C(OC(=O)c1cnccn1)c1ccccc1
Answer: b. CCOc1ccccc1NC(=O)C(OC(=O)c1cnccn1)c1ccccc1
{#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#}
CCOc1ccccc1NC(=O)C(OC(=O)c1cnccn1)c1ccccc1
CCOc1ccccc1NC(=O)C(OC(=O)c1cnccn1)c1ccccc1
[2-(2-ethoxyanilino)-2-oxo-1-phenylethyl] pyrazine-2-carboxylate