Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 4.938\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] COC(=O)C(C)(C)ONC(=O)Nc1ccccc1
[b] CC(NC(=O)c1cccc(N2CCCC2=O)c1)c1ccc2c(c1)OCCO2
Answer: a. COC(=O)C(C)(C)ONC(=O)Nc1ccccc1
{#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#}
COC(=O)C(C)(C)ONC(=O)Nc1ccccc1
COC(=O)C(C)(C)ONC(=O)Nc1ccccc1
methyl 2-methyl-2-(phenylcarbamoylamino)oxypropanoate