Problem statement: Answer the multiple-choice question.
Query: Which compound has a 2.104\% 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=[N+]([O-])c1ccc(N2CCCC2)c2ncccc12
[b] C=C(C)C(=O)Nc1cccc(C2=NOC3(C2)C[C@@H](C(N)=O)N(C(=O)/C=C/C=C/C)C3)c1
Answer: a. O=[N+]([O-])c1ccc(N2CCCC2)c2ncccc12
{#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#}
oxido-oxo-(8-pyrrolidin-1-ylquinolin-5-yl)azanium