Task: Answer the multiple choice question.
Query: Which compound exhibits a -1.054\% 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] COc1ccc(COCC(O)CN2CCC(C(N)=O)CC2)cc1OC
[b] COC(=O)N/N=C/c1ccc([N+](=O)[O-])o1
Answer: b. COC(=O)N/N=C/c1ccc([N+](=O)[O-])o1
{#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#}
COC(=O)N/N=C/c1ccc([N+](=O)[O-])o1
COC(=O)N/N=C/c1ccc([N+](=O)[O-])o1
methyl N-[(E)-(5-nitrofuran-2-yl)methylideneamino]carbamate