Task: Answer the MCQ question.
Query: Which compound has a 2.893\% human ether-à-go-go related gene (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)C(=CNc1ccccc1C)C(=O)OCC
b) CN(C)CCCNS(=O)(=O)c1cc(Cl)ccc1Cl
Answer: a. CCOC(=O)C(=CNc1ccccc1C)C(=O)OCC
{#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)C(=CNc1ccccc1C)C(=O)OCC
CCOC(=O)C(=CNc1ccccc1C)C(=O)OCC
diethyl 2-[(2-methylanilino)methylidene]propanedioate