Task: Answer the multiple choice question.
Question: Which compound exhibits a -11.591\% 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: O=C1COc2ccc(C(=O)COC(=O)c3ccc(Cl)cc3[N+](=O)[O-])cc2N1
b: CCOCN(C(=O)Cn1c(CO)nc2ccccc21)c1c(C)cccc1CC
Answer: a. O=C1COc2ccc(C(=O)COC(=O)c3ccc(Cl)cc3[N+](=O)[O-])cc2N1
{#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#}
O=C1COc2ccc(C(=O)COC(=O)c3ccc(Cl)cc3[N+](=O)[O-])cc2N1
O=C1COc2ccc(C(=O)COC(=O)c3ccc(Cl)cc3[N+](=O)[O-])cc2N1
[2-oxo-2-(3-oxo-4H-1,4-benzoxazin-6-yl)ethyl] 4-chloro-2-nitrobenzoate