Problem statement: Answer the multiple-choice question.
Query: Which compound has a 7.879\% 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) CCOC(=O)C1=C(CN2CCOCC2)NC(=O)NC1c1cc(C)ccc1C
(b) Cc1c(Cl)c([N+](=O)[O-])nn1CC(=O)NC(C)C1CC2CCC1C2
Answer: a. CCOC(=O)C1=C(CN2CCOCC2)NC(=O)NC1c1cc(C)ccc1C
{#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#}
ethyl 4-(2,5-dimethylphenyl)-6-(morpholin-4-ylmethyl)-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate