Task: Answer the MCQ question.
Query: Which compound exhibits a 5.559\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] COc1ccc(C2=Nn3c(nnc3-c3ccccn3)SC2)cc1OC
[b] CCCCSc1nc(O)c(Cc2ccccc2)c(=O)[nH]1
Answer: b. CCCCSc1nc(O)c(Cc2ccccc2)c(=O)[nH]1
{#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#}
CCCCSc1nc(O)c(Cc2ccccc2)c(=O)[nH]1
CCCCSc1nc(O)c(Cc2ccccc2)c(=O)[nH]1
5-benzyl-2-butylsulfanyl-4-hydroxy-1H-pyrimidin-6-one