Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 3.698\% 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: O=C(CN1CCCCCC1)Nc1ccc([N+](=O)[O-])cc1Br
b: O=C(c1cc2ccccc2cc1O)N1CCN(c2ccccn2)CC1
c: CC(=O)c1cccc(OCC(=O)Nc2cc(Cl)ccc2-n2cncn2)c1
d: CCOc1ccc(NC(=O)CSc2ccc(-c3ccco3)nn2)cc1
Answer: b. O=C(c1cc2ccccc2cc1O)N1CCN(c2ccccn2)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#}
O=C(c1cc2ccccc2cc1O)N1CCN(c2ccccn2)CC1
O=C(c1cc2ccccc2cc1O)N1CCN(c2ccccn2)CC1
(3-hydroxynaphthalen-2-yl)-(4-pyridin-2-ylpiperazin-1-yl)methanone