Task: Answer the MCQ question.
Question: Which drug has a 2.274\% 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)C1=C(C)OC(N)=C(C#N)C1c1cc2c(cc1[N+](=O)[O-])OCO2
b CS(=O)(=O)c1ccc(-c2cccc(NC(=O)c3ccco3)c2)nn1
Answer: a. CCOC(=O)C1=C(C)OC(N)=C(C#N)C1c1cc2c(cc1[N+](=O)[O-])OCO2
{#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)C1=C(C)OC(N)=C(C#N)C1c1cc2c(cc1[N+](=O)[O-])OCO2
CCOC(=O)C1=C(C)OC(N)=C(C#N)C1c1cc2c(cc1[N+](=O)[O-])OCO2
ethyl 6-amino-5-cyano-2-methyl-4-(6-nitro-1,3-benzodioxol-5-yl)-4H-pyran-3-carboxylate