Problem statement: Answer the MCQ question.
Query: Which drug exhibits a -32.222\% 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)N1CCC(N2CCN(c3cc(C)ccc3C)CC2)CC1
b) COc1cc(OC)cc(C(=O)NCC(=O)OCc2nc3ccccc3s2)c1
Answer: a. CCOC(=O)N1CCC(N2CCN(c3cc(C)ccc3C)CC2)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-[4-(2,5-dimethylphenyl)piperazin-1-yl]piperidine-1-carboxylate