Task: Answer the multiple-choice question.
Question: Which compound exhibits a 8.009\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: O=C(Nc1ccccc1Cl)c1cc2ccccc2o/c1=N\O
b: COC(=O)c1ccc(=O)n(Cc2ccco2)c1
c: COc1ccc(OCC(=O)NNC(=O)c2c(-c3ccccc3Cl)noc2C)cc1
d: CCOC(=O)CCc1c(C)n(CC)c2ncnn2c1=O
Answer: d. CCOC(=O)CCc1c(C)n(CC)c2ncnn2c1=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)CCc1c(C)n(CC)c2ncnn2c1=O
CCOC(=O)CCc1c(C)n(CC)c2ncnn2c1=O
ethyl 3-(4-ethyl-5-methyl-7-oxo-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)propanoate