Task: Answer the MCQ question.
Question: Which drug exhibits a 16.562\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. Cn1c(=O)c([N+](=O)[O-])c(NCCCn2ccnc2)c2ccccc21
b. COc1ccccc1CNC(=O)C1CCCN(S(=O)(=O)c2cccc3nonc23)C1
c. O=C(COC(=O)COc1ccc(Br)cc1)Nc1ccc2c(c1)OCCO2
Answer: a. Cn1c(=O)c([N+](=O)[O-])c(NCCCn2ccnc2)c2ccccc21
{#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#}
Cn1c(=O)c([N+](=O)[O-])c(NCCCn2ccnc2)c2ccccc21
Cn1c(=O)c([N+](=O)[O-])c(NCCCn2ccnc2)c2ccccc21
[4-(3-imidazol-1-ylpropylamino)-1-methyl-2-oxoquinolin-3-yl]-oxido-oxoazanium