Task: Answer the multiple-choice question.
Question: Which compound exhibits a 2.176\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) COc1ccc(CCNCc2ccccn2)cc1OC
(b) O=C(NC1CCCCC1)Nn1c(-c2ccccc2)nc2ccccc2c1=O
(c) COc1ccc(NC(=O)C/C(C)=N/NC(=O)c2ccccn2)c(OC)c1
Answer: a. COc1ccc(CCNCc2ccccn2)cc1OC
{#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(CCNCc2ccccn2)cc1OC
COc1ccc(CCNCc2ccccn2)cc1OC
2-(3,4-dimethoxyphenyl)-N-(pyridin-2-ylmethyl)ethanamine