Task: Answer the multiple-choice question.
Question: Which compound exhibits a 4.281\% 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 O=C1C(=O)N(CCCN2CCOCC2)C(c2ccc(Cl)cc2)/C1=C(\O)c1ccc2c(c1)OCCO2
b CN1C(C(=O)NCc2ccccc2)CC2Cn3c(nc4cc5ccccc5cc43)C21
c CCOc1ccccc1OCCC(=O)N1CCN(S(=O)(=O)c2ccccc2[N+](=O)[O-])CC1
d O=C(Nc1ccc2c(c1)OCCO2)c1cc(-c2ccccn2)nc2ccc(Br)cc12
Answer: c. CCOc1ccccc1OCCC(=O)N1CCN(S(=O)(=O)c2ccccc2[N+](=O)[O-])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#}
CCOc1ccccc1OCCC(=O)N1CCN(S(=O)(=O)c2ccccc2[N+](=O)[O-])CC1
CCOc1ccccc1OCCC(=O)N1CCN(S(=O)(=O)c2ccccc2[N+](=O)[O-])CC1
3-(2-ethoxyphenoxy)-1-[4-(2-nitrophenyl)sulfonylpiperazin-1-yl]propan-1-one