Task: Answer the multiple-choice question.
Question: Which compound has a -18.800\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a CC(C)CN1CCN(Cc2cccn2-c2ccccn2)CC1CCO
b CCc1nn(-c2cc(Oc3cccc4ccccc34)nc(-c3ccccc3)n2)c(N)c1C#N
c CCOc1ccc(-n2ccc(=O)c(C(=O)Nc3ccc(S(=O)(=O)N4CCOCC4)cc3)n2)cc1
d O=C(O)CCc1nn2c3ccccc3n(Cc3ccccc3F)c2nc1=O
Answer: a. CC(C)CN1CCN(Cc2cccn2-c2ccccn2)CC1CCO
{#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#}
CC(C)CN1CCN(Cc2cccn2-c2ccccn2)CC1CCO
CC(C)CN1CCN(Cc2cccn2-c2ccccn2)CC1CCO
2-[1-(2-methylpropyl)-4-[(1-pyridin-2-ylpyrrol-2-yl)methyl]piperazin-2-yl]ethanol