Problem statement: Answer the MCQ question.
Query: Which compound has a 6.243\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] O=C(O)C1C2C=CC(C2)C1C(=O)N1CCN(C/C=C/c2ccccc2)CC1
[b] CCOC(=O)C1C2C=CC3(CN(Cc4cccs4)C(=O)C13)O2
Answer: b. CCOC(=O)C1C2C=CC3(CN(Cc4cccs4)C(=O)C13)O2
{#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#}
ethyl 4-oxo-3-(thiophen-2-ylmethyl)-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxylate