Task: Answer the multiple-choice question.
Question: Which compound exhibits a 12.617\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: O=C(CSCc1c(Cl)cccc1Cl)Nc1cccnc1
b: CCOC(=O)c1cc2cc3ccccc3cc2oc1=O
c: FC(F)(F)c1ccc(Cl)c(-n2c(-c3cc(-c4ccco4)[nH]n3)n[nH]c2=S)c1
d: O=C(CCN1CCN(Cc2ccccc2)CC1)Nc1nccs1
Answer: b. CCOC(=O)c1cc2cc3ccccc3cc2oc1=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#}
CCOC(=O)c1cc2cc3ccccc3cc2oc1=O
CCOC(=O)c1cc2cc3ccccc3cc2oc1=O
ethyl 2-oxobenzo[g]chromene-3-carboxylate