Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 12.879\% 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] O=C1NC2(CCCCCC2)N=C1c1ccc(Br)cc1
[b] NC(=O)CC(NC(=O)c1ccc(Br)cc1)c1ccc(N2CCN(c3ccccn3)CC2)c([N+](=O)[O-])c1
Answer: a. O=C1NC2(CCCCCC2)N=C1c1ccc(Br)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=C1NC2(CCCCCC2)N=C1c1ccc(Br)cc1
O=C1NC2(CCCCCC2)N=C1c1ccc(Br)cc1
3-(4-bromophenyl)-1,4-diazaspiro[4.6]undec-3-en-2-one