Task: Answer the multiple choice question.
Query: Which compound exhibits a 5.667\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CCOC(=O)C1CCc2nc3ccccc3c(=O)n21
[b] CCN(CC)C(=O)CN(c1cccc(OC)c1)S(=O)(=O)c1ccc(C)cc1
[c] CCCCC(CC)C(=O)Nc1cc(C(=O)NCc2ccc(C)cc2)ccc1N1CCC2(CC1)CC(c1ccccc1)=NO2
[d] CC(=O)Nc1cccc(-c2csc(Nc3ccc(C)cn3)n2)c1
Answer: a. CCOC(=O)C1CCc2nc3ccccc3c(=O)n21
{#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)C1CCc2nc3ccccc3c(=O)n21
CCOC(=O)C1CCc2nc3ccccc3c(=O)n21
ethyl 9-oxo-2,3-dihydro-1H-pyrrolo[2,1-b]quinazoline-1-carboxylate