Task: Answer the MCQ question.
Query: Which compound exhibits a 15.294\% 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] CCCCS/C(=C(/C#N)C(N)=O)c1cc2c([nH]1)CCCC2
[b] O=C(CCCn1c(=O)[nH]c2ccsc2c1=O)N1CCCCC1
Answer: b. O=C(CCCn1c(=O)[nH]c2ccsc2c1=O)N1CCCCC1
{#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#}
O=C(CCCn1c(=O)[nH]c2ccsc2c1=O)N1CCCCC1
O=C(CCCn1c(=O)[nH]c2ccsc2c1=O)N1CCCCC1
3-(4-oxo-4-piperidin-1-ylbutyl)-1H-thieno[3,2-d]pyrimidine-2,4-dione