Problem statement: Answer the MCQ question.
Question: Which compound exhibits a -2.516\% 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] COC(=O)C1=C(C)N(C)C(=O)NC1c1ccc([N+](=O)[O-])o1
[b] CN1CCc2c(OCC(=O)N3CCc4ccccc43)cccc2C1=O
Answer: b. CN1CCc2c(OCC(=O)N3CCc4ccccc43)cccc2C1=O
{#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#}
CN1CCc2c(OCC(=O)N3CCc4ccccc43)cccc2C1=O
CN1CCc2c(OCC(=O)N3CCc4ccccc43)cccc2C1=O
5-[2-(2,3-dihydroindol-1-yl)-2-oxoethoxy]-2-methyl-3,4-dihydroisoquinolin-1-one