Task: Answer the multiple-choice question.
Query: Which compound exhibits a -64.810% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a CCCCc1cc(=O)oc2c(C)c(OCC(=O)N3CCCC3)ccc12
b CC(C)O/C(=N\S(=O)(=O)c1ccc(Cl)cc1)c1ccccc1
Answer: a. CCCCc1cc(=O)oc2c(C)c(OCC(=O)N3CCCC3)ccc12
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCc1cc(=O)oc2c(C)c(OCC(=O)N3CCCC3)ccc12
CCCCc1cc(=O)oc2c(C)c(OCC(=O)N3CCCC3)ccc12
4-butyl-8-methyl-7-(2-oxo-2-pyrrolidin-1-ylethoxy)chromen-2-one