Task: Answer the MCQ question.
Question: Which compound has a 4.537\% 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(Oc1ccc(=O)n(-c2ccccc2)n1)C(C)=O
b. COc1ccc(CCNC(=O)c2ccc3c(c2)N(Cc2ccc(F)cc2)CCS3)c(OC)c1
Answer: a. CCOC(=O)C(Oc1ccc(=O)n(-c2ccccc2)n1)C(C)=O
{#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(Oc1ccc(=O)n(-c2ccccc2)n1)C(C)=O
CCOC(=O)C(Oc1ccc(=O)n(-c2ccccc2)n1)C(C)=O
ethyl 3-oxo-2-(6-oxo-1-phenylpyridazin-3-yl)oxybutanoate