Task: Answer the multiple choice question.
Question: Which compound exhibits a 18.976\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a O=C(COC(=O)c1ncc(Cl)c(Cl)c1Cl)NC1CCCCCC1
b CC(C)(O)C#Cc1ccc(CN2CCN(C3CCCCC3)C(CCO)C2)s1
Answer: b. CC(C)(O)C#Cc1ccc(CN2CCN(C3CCCCC3)C(CCO)C2)s1
{#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#}
CC(C)(O)C#Cc1ccc(CN2CCN(C3CCCCC3)C(CCO)C2)s1
CC(C)(O)C#Cc1ccc(CN2CCN(C3CCCCC3)C(CCO)C2)s1
4-[5-[[4-cyclohexyl-3-(2-hydroxyethyl)piperazin-1-yl]methyl]thiophen-2-yl]-2-methylbut-3-yn-2-ol