Task: Answer the multiple-choice question.
Query: Which compound exhibits a 0.957\% 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: c1ccc(-c2cc(-c3nc(-c4ccccn4)no3)c3ccccc3n2)cc1
b: COC(=O)c1cccc(COC(=O)c2ccc(CS(=O)(=O)c3ccc(C)cc3)cc2)c1
Answer: a. c1ccc(-c2cc(-c3nc(-c4ccccn4)no3)c3ccccc3n2)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#}
5-(2-phenylquinolin-4-yl)-3-pyridin-2-yl-1,2,4-oxadiazole