Task: Answer the multiple choice question.
Query: Which compound exhibits a -21.687% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] CCCCOC(=O)Nc1ccc(N(C)C)cc1
[b] Cc1ccc(S(=O)(=O)Oc2ccc3ccc(O)cc3c2)cc1
[c] Cn1c(=O)c2c(nc(CN3CCN(c4ccccc4)CC3)n2CCN2CCOCC2)n(C)c1=O
Answer: c. Cn1c(=O)c2c(nc(CN3CCN(c4ccccc4)CC3)n2CCN2CCOCC2)n(C)c1=O
{#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#}
Cn1c(=O)c2c(nc(CN3CCN(c4ccccc4)CC3)n2CCN2CCOCC2)n(C)c1=O
Cn1c(=O)c2c(nc(CN3CCN(c4ccccc4)CC3)n2CCN2CCOCC2)n(C)c1=O
1,3-dimethyl-7-(2-morpholin-4-ylethyl)-8-[(4-phenylpiperazin-1-yl)methyl]purine-2,6-dione