Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 2.614\% 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, b, or c without using any other words.
Options:
a) O=C(CC1Nc2ccccc2NC1=O)NCCc1ccccc1
b) Nc1ccccc1-c1nnc(-c2ccc(-c3ccccc3)cc2)o1
c) NS(=O)(=O)c1ccc(NC(=O)CN2CCCC2)cc1
Answer: a. O=C(CC1Nc2ccccc2NC1=O)NCCc1ccccc1
{#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#}
2-(3-oxo-2,4-dihydro-1H-quinoxalin-2-yl)-N-(2-phenylethyl)acetamide