Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 0.099\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCOC(=O)c1ccc(S(=O)(=O)N2CCNCC2)cc1
b: CC(Oc1cc(F)ccc1[N+](=O)[O-])C(=O)Nc1ccc(S(=O)(=O)N2CCCC2)cc1
Answer: a. CCOC(=O)c1ccc(S(=O)(=O)N2CCNCC2)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#}
ethyl 4-piperazin-1-ylsulfonylbenzoate