Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 4.043\% 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) Cn1c2ccccc2c2ncn(CCC3=CCCCC3)c(=O)c21
b) CCOc1ncccc1C(=O)OCCN1C(=O)c2ccccc2C1=O
c) c1ccc(-c2n[nH]nc2-c2ccccc2)cc1
d) COc1cc(SC)ccc1C(=O)Nc1ccccc1C#N
Answer: b. CCOc1ncccc1C(=O)OCCN1C(=O)c2ccccc2C1=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#}
CCOc1ncccc1C(=O)OCCN1C(=O)c2ccccc2C1=O
CCOc1ncccc1C(=O)OCCN1C(=O)c2ccccc2C1=O
2-(1,3-dioxoisoindol-2-yl)ethyl 2-ethoxypyridine-3-carboxylate