Task: Answer the MCQ question.
Query: Which compound exhibits a 16.824\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a.) COc1ccccc1OCCn1c(=O)oc2ccc(C)cc21
b.) CCOC(=O)C1C(=O)NC(SCC(=O)Nc2nccs2)=C(C#N)C1c1ccccc1OCC
c.) Cc1cc(NC(=O)c2cccs2)n(-c2ccccc2)n1
Answer: b. CCOC(=O)C1C(=O)NC(SCC(=O)Nc2nccs2)=C(C#N)C1c1ccccc1OCC
{#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 5-cyano-4-(2-ethoxyphenyl)-2-oxo-6-[2-oxo-2-(1,3-thiazol-2-ylamino)ethyl]sulfanyl-3,4-dihydro-1H-pyridine-3-carboxylate