Task: Answer the multiple-choice question.
Question: Which compound exhibits a 6.405\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CCn1cc(CN2CCN(CCC(C)C)C(CCO)C2)c2ccccc21
(b) Oc1ccccc1/C=N/[n+]1ccccc1.[I-]
Answer: a. CCn1cc(CN2CCN(CCC(C)C)C(CCO)C2)c2ccccc21
{#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#}
CCn1cc(CN2CCN(CCC(C)C)C(CCO)C2)c2ccccc21
CCn1cc(CN2CCN(CCC(C)C)C(CCO)C2)c2ccccc21
2-[4-[(1-ethylindol-3-yl)methyl]-1-(3-methylbutyl)piperazin-2-yl]ethanol