Task: Answer the MCQ question.
Question: Which compound has a 5.840\% human ether-à-go-go related gene (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] CCOc1ccccc1NC(=O)CSc1nc2cccnc2n1C
[b] CCCOc1ccc(C(O)C(CN2CCOCC2)c2ccccc2)cc1.Cl
Answer: a. CCOc1ccccc1NC(=O)CSc1nc2cccnc2n1C
{#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#}
CCOc1ccccc1NC(=O)CSc1nc2cccnc2n1C
CCOc1ccccc1NC(=O)CSc1nc2cccnc2n1C
N-(2-ethoxyphenyl)-2-(3-methylimidazo[4,5-b]pyridin-2-yl)sulfanylacetamide