Task: Answer the MCQ question.
Question: Which compound exhibits a -20.535% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a NC(=O)C1CCN(C(=O)C(=O)c2cn(CC(=O)N3CCCC3)c3ccccc23)CC1
b O=C(Cn1nnc2c(cnn2-c2ccccc2)c1=O)N1CCN(c2ccccc2F)CC1
Answer: b. O=C(Cn1nnc2c(cnn2-c2ccccc2)c1=O)N1CCN(c2ccccc2F)CC1
{#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#}
O=C(Cn1nnc2c(cnn2-c2ccccc2)c1=O)N1CCN(c2ccccc2F)CC1
O=C(Cn1nnc2c(cnn2-c2ccccc2)c1=O)N1CCN(c2ccccc2F)CC1
3-[2-[4-(2-fluorophenyl)piperazin-1-yl]-2-oxoethyl]-7-phenylpyrazolo[3,4-d]triazin-4-one