Task: Answer the multiple choice question.
Question: Which compound exhibits a 16.800\% 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] Cn1c(=O)[nH]c(=O)c2c1nc(N1CCCCC1)n2CCSc1nc2ccccc2o1
[b] COc1ccc(NC(=O)CCN2C(=O)c3ccccc3C2=O)cc1
Answer: b. COc1ccc(NC(=O)CCN2C(=O)c3ccccc3C2=O)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(NC(=O)CCN2C(=O)c3ccccc3C2=O)cc1
COc1ccc(NC(=O)CCN2C(=O)c3ccccc3C2=O)cc1
3-(1,3-dioxoisoindol-2-yl)-N-(4-methoxyphenyl)propanamide