Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a -3.184\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CCOC(=O)c1cnn(-c2nc(C)cc(C)n2)c1N
[b] CCOc1ccc(NC(=O)Nc2ccc3c(c2)nnn3C)cc1
Answer: a. CCOC(=O)c1cnn(-c2nc(C)cc(C)n2)c1N
{#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#}
ethyl 5-amino-1-(4,6-dimethylpyrimidin-2-yl)pyrazole-4-carboxylate