Task: Answer the MCQ question.
Query: Which compound has a -20.494% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CN1CCc2c1nc1ccccc1c2N=C1CCCN1Cc1ccccc1.Cl
b: COC(=O)Nc1sc2nc(C)cc(C)c2c1-n1cccc1
Answer: b. COC(=O)Nc1sc2nc(C)cc(C)c2c1-n1cccc1
{#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#}
COC(=O)Nc1sc2nc(C)cc(C)c2c1-n1cccc1
COC(=O)Nc1sc2nc(C)cc(C)c2c1-n1cccc1
methyl N-(4,6-dimethyl-3-pyrrol-1-ylthieno[2,3-b]pyridin-2-yl)carbamate