Task: Answer the multiple choice question.
Query: Which compound has a -18.685\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] CCCCN(C(=O)CC1CCCC1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
[b] CCc1cccc(C)c1NC(=O)c1ccc2c(c1)CCN2S(C)(=O)=O
[c] C/C(=N\NC(=O)Cc1c(C)[nH][nH]c1=O)c1ccc(Cl)c(Cl)c1
Answer: a. CCCCN(C(=O)CC1CCCC1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
{#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#}
CCCCN(C(=O)CC1CCCC1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
CCCCN(C(=O)CC1CCCC1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
N-[4-amino-3-(2-methylpropyl)-2,6-dioxopyrimidin-5-yl]-N-butyl-2-cyclopentylacetamide