Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a -1.640\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CC(=O)Nc1ccc(OC(=O)N2CCCCC2)cc1
[b] CN(CC(=O)Nc1ccc(F)cc1)CC(=O)N(C)C1(C#N)CCCCC1
[c] CCc1ccc(Oc2coc3cc(OCC(=O)Nc4cc(C)ccc4C)ccc3c2=O)cc1
[d] O=C(NCc1ccccc1Cl)C1CCN(C(=O)c2sccc2-n2cccc2)CC1
Answer: a. CC(=O)Nc1ccc(OC(=O)N2CCCCC2)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#}
CC(=O)Nc1ccc(OC(=O)N2CCCCC2)cc1
CC(=O)Nc1ccc(OC(=O)N2CCCCC2)cc1
(4-acetamidophenyl) piperidine-1-carboxylate