Problem statement: Answer the multiple-choice question.
Question: Which compound has a 12.643\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CCN(CC)C(=O)Nc1cnc2ccccc2c1
b: O=C(c1cnc2ccccn2c1=O)N1CCCc2ccccc21
c: Cn1nc(OCC(N)=O)ccc1=O
d: O=C(Nc1ccccc1F)c1cc(S(=O)(=O)N2CCCCC2)cs1
Answer: a. CCN(CC)C(=O)Nc1cnc2ccccc2c1
{#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#}
3-quinolin-3-yl-1,1-diethylurea