Task: Answer the multiple choice question.
Question: Which compound has a 5.457\% 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] Cc1noc(C)c1C(=O)NCc1cccs1
[b] CCOC(=O)C(Sc1ncc(C#N)c(N)n1)C(C)C
[c] CCOC(=O)c1c(NC(=O)CSc2nc3ccc(C)cc3[nH]2)sc2c1CC(C)(C)NC2(C)C
[d] Clc1ccc(OCc2nn3c(-c4ccncc4)nnc3s2)cc1
Answer: b. CCOC(=O)C(Sc1ncc(C#N)c(N)n1)C(C)C
{#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)C(Sc1ncc(C#N)c(N)n1)C(C)C
CCOC(=O)C(Sc1ncc(C#N)c(N)n1)C(C)C
ethyl 2-(4-amino-5-cyanopyrimidin-2-yl)sulfanyl-3-methylbutanoate