Problem statement: Answer the multiple choice question.
Query: Which drug has a 16.159\% 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] O=C1OCC(c2ccc(Cl)s2)=C1c1ccccc1[N+](=O)[O-]
[b] O=C(NCCCn1ccnc1)c1ccc2c(c1)OCCO2
Answer: a. O=C1OCC(c2ccc(Cl)s2)=C1c1ccccc1[N+](=O)[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#}
O=C1OCC(c2ccc(Cl)s2)=C1c1ccccc1[N+](=O)[O-]
O=C1OCC(c2ccc(Cl)s2)=C1c1ccccc1[N+](=O)[O-]
3-(5-chlorothiophen-2-yl)-4-(2-nitrophenyl)-2H-furan-5-one