Task: Answer the MCQ question.
Query: Which compound has a -1.557\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COc1ccc(OCC(=O)Nc2cccc(-c3nc4ccccc4o3)c2)cc1
(b) Nc1ccc([As](=O)(O)O)cc1
Answer: a. COc1ccc(OCC(=O)Nc2cccc(-c3nc4ccccc4o3)c2)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#}
N-[3-(1,3-benzoxazol-2-yl)phenyl]-2-(4-methoxyphenoxy)acetamide