Task: Answer the multiple choice question.
Query: Which drug exhibits a 2.266\% 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: CCCC(=O)Nc1nc(-c2ccc3c(c2)OCCO3)cs1
b: COC(=O)C(C)Sc1nc(N)c(NC(=O)c2ccco2)c(=O)[nH]1
Answer: a. CCCC(=O)Nc1nc(-c2ccc3c(c2)OCCO3)cs1
{#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#}
CCCC(=O)Nc1nc(-c2ccc3c(c2)OCCO3)cs1
CCCC(=O)Nc1nc(-c2ccc3c(c2)OCCO3)cs1
N-[4-(2,3-dihydro-1,4-benzodioxin-6-yl)-1,3-thiazol-2-yl]butanamide