Task: Answer the multiple choice question.
Query: Which compound exhibits a 11.837\% 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: CCc1cc2c(=O)c(-c3nc4ccccc4n3C)c(C)oc2c(CN2CCCCC2)c1O
b: C=CCn1c(=O)n(CCC#N)c(=O)n(CCC#N)c1=O
Answer: b. C=CCn1c(=O)n(CCC#N)c(=O)n(CCC#N)c1=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#}
3-[5-(2-cyanoethyl)-2,4,6-trioxo-1-prop-2-enyl-1,3,5-triazinan-3-yl]propanenitrile