Task: Answer the MCQ question.
Question: Which compound has a -0.013\% 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: CCCCOC(=O)N/N=C/C=C/c1ccccc1
b: CCOc1ccc(-c2cc(N)n(S(=O)(=O)c3cccc4nsnc34)n2)cc1
Answer: a. CCCCOC(=O)N/N=C/C=C/c1ccccc1
{#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#}
butyl N-[(E)-[(E)-3-phenylprop-2-enylidene]amino]carbamate