Problem statement: Answer the MCQ question.
Question: Which compound has a -4.569\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CC(=O)CC(=O)Nc1ccc(Cl)cn1
[b] CN1CCN(S(=O)(=O)c2ccc(Br)s2)CC1
[c] CCOC(=O)c1nc(-c2ccc(OC)c(OC)c2)cnc1C#N
Answer: b. CN1CCN(S(=O)(=O)c2ccc(Br)s2)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#}
CN1CCN(S(=O)(=O)c2ccc(Br)s2)CC1
CN1CCN(S(=O)(=O)c2ccc(Br)s2)CC1
1-(5-bromothiophen-2-yl)sulfonyl-4-methylpiperazine