Task: Answer the multiple choice question.
Query: Which compound has a 3.941\% 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] Cc1ccc(NC(=O)Cn2nnc(C(=O)Nc3ccc(C)c(C)c3)c2N)cc1
[b] CCOC(=O)c1c(CC(C)C)csc1NC(C)=O
Answer: b. CCOC(=O)c1c(CC(C)C)csc1NC(C)=O
{#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)c1c(CC(C)C)csc1NC(C)=O
CCOC(=O)c1c(CC(C)C)csc1NC(C)=O
ethyl 2-acetamido-4-(2-methylpropyl)thiophene-3-carboxylate