Problem statement: Answer the MCQ question.
Question: Which drug has a -2.447\% 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. CCOCCNC(=O)c1ccccc1C(=O)NCCOCC
b. C=CCn1c(Sc2ccc(S(=O)(=O)Nc3ccccc3)cc2[N+](=O)[O-])nnc1C1CCCCC1
Answer: a. CCOCCNC(=O)c1ccccc1C(=O)NCCOCC
{#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#}
CCOCCNC(=O)c1ccccc1C(=O)NCCOCC
CCOCCNC(=O)c1ccccc1C(=O)NCCOCC
[C][C][O][C][C][N][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][C][O][C][C]
1-N,2-N-bis(2-ethoxyethyl)benzene-1,2-dicarboxamide