Task: Answer the MCQ question.
Question: Which drug has a 3.945\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) CCOC(=O)c1cnc2cc3c(cn2c1=O)CCCC3
b.) CC(C)c1ccc(C(C)NCCS(=O)(=O)c2ccc(Cl)cc2)cc1
Answer: a. CCOC(=O)c1cnc2cc3c(cn2c1=O)CCCC3
{#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)c1cnc2cc3c(cn2c1=O)CCCC3
CCOC(=O)c1cnc2cc3c(cn2c1=O)CCCC3
ethyl 4-oxo-7,8,9,10-tetrahydropyrimido[1,2-b]isoquinoline-3-carboxylate