Task: Answer the multiple-choice question.
Question: Which compound exhibits a 12.787\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a CCOC(=O)C1=C(COC(=O)c2ccccc2OC(F)F)NC(=O)NC1C
b COC(=O)Cc1[nH]n(-c2nc3ccccc3s2)c(=O)c1C(C)=Nc1ccc(OC)cc1
Answer: a. CCOC(=O)C1=C(COC(=O)c2ccccc2OC(F)F)NC(=O)NC1C
{#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#}
CCOC(=O)C1=C(COC(=O)c2ccccc2OC(F)F)NC(=O)NC1C
CCOC(=O)C1=C(COC(=O)c2ccccc2OC(F)F)NC(=O)NC1C
ethyl 6-[[2-(difluoromethoxy)benzoyl]oxymethyl]-4-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate