Task: Answer the multiple-choice question.
Question: Which compound has a -2.743\% 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] CCOC(=O)N1CCN(S(=O)(=O)c2ccc3c4c(cccc24)C(=O)N3)CC1
[b] COc1ccc(Cn2c(C)cc3c(c2=O)C(c2cccs2)C(C#N)=C(N)O3)cc1OC
Answer: a. CCOC(=O)N1CCN(S(=O)(=O)c2ccc3c4c(cccc24)C(=O)N3)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#}
CCOC(=O)N1CCN(S(=O)(=O)c2ccc3c4c(cccc24)C(=O)N3)CC1
CCOC(=O)N1CCN(S(=O)(=O)c2ccc3c4c(cccc24)C(=O)N3)CC1
ethyl 4-[(2-oxo-1H-benzo[cd]indol-6-yl)sulfonyl]piperazine-1-carboxylate