Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 1.375\% 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 Cc1ccc(CNC(=O)CSc2nc3ccsc3c(=O)n2Cc2ccccn2)cc1
b O=C(Nc1ncccn1)C1CCCCC1
Answer: b. O=C(Nc1ncccn1)C1CCCCC1
{#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(Nc1ncccn1)C1CCCCC1
O=C(Nc1ncccn1)C1CCCCC1
N-pyrimidin-2-ylcyclohexanecarboxamide