Task: Answer the MCQ question.
Query: Which compound has a 15.116\% 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 additional words.
Options:
a) O=[N+]([O-])c1cc(F)c(N2CCCC2)cc1Br
b) COc1cccc(N(C(=O)Cn2nnc(-c3cccs3)n2)C(C(=O)NC(C)C)c2ccc(C)o2)c1
Answer: a. O=[N+]([O-])c1cc(F)c(N2CCCC2)cc1Br
{#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=[N+]([O-])c1cc(F)c(N2CCCC2)cc1Br
O=[N+]([O-])c1cc(F)c(N2CCCC2)cc1Br
1-(5-bromo-2-fluoro-4-nitrophenyl)pyrrolidine