Task: Answer the multiple choice question.
Question: Which compound exhibits a 5.541\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a CCc1ccccc1NC(=S)/N=C(\N)Nc1nc(C)c2cc(C)ccc2n1
b CCN(C(=O)CSc1nncs1)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=O
Answer: b. CCN(C(=O)CSc1nncs1)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=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#}
CCN(C(=O)CSc1nncs1)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=O
CCN(C(=O)CSc1nncs1)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=O
N-(6-amino-1-benzyl-2,4-dioxopyrimidin-5-yl)-N-ethyl-2-(1,3,4-thiadiazol-2-ylsulfanyl)acetamide