Task: Answer the multiple choice question.
Query: Which compound exhibits a 3.409\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: COc1ccc(C(=O)Cn2nnc(-c3cccs3)n2)cc1
b: c1ccc(CN2CCN(CCCNc3ccc4nnc(-c5ccccc5)n4n3)CC2)cc1
Answer: a. COc1ccc(C(=O)Cn2nnc(-c3cccs3)n2)cc1
{#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#}
COc1ccc(C(=O)Cn2nnc(-c3cccs3)n2)cc1
COc1ccc(C(=O)Cn2nnc(-c3cccs3)n2)cc1
1-(4-methoxyphenyl)-2-(5-thiophen-2-yltetrazol-2-yl)ethanone