Problem statement: Answer the MCQ question.
Question: Which drug has a 0.506\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CCCOc1ccc(C2=CC(=O)C[C@H](c3ccc(OC)cc3)C2)cc1
(b) CCn1c(SCc2nc(N)nc(N3CCCCC3)n2)nc2c1c(=O)n(C)c(=O)n2C
Answer: b. CCn1c(SCc2nc(N)nc(N3CCCCC3)n2)nc2c1c(=O)n(C)c(=O)n2C
{#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#}
CCn1c(SCc2nc(N)nc(N3CCCCC3)n2)nc2c1c(=O)n(C)c(=O)n2C
CCn1c(SCc2nc(N)nc(N3CCCCC3)n2)nc2c1c(=O)n(C)c(=O)n2C
8-[(4-amino-6-piperidin-1-yl-1,3,5-triazin-2-yl)methylsulfanyl]-7-ethyl-1,3-dimethylpurine-2,6-dione