Task: Answer the multiple-choice question.
Question: Which compound exhibits a 3.448\% 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 other words.
Options:
a: O=C(Nc1cccc(F)c1)c1coc(=O)c(Br)c1
b: NC(=O)Cn1cc(/C=N\NS(=O)(=O)c2cccc([N+](=O)[O-])c2)c2ccccc21
Answer: a. O=C(Nc1cccc(F)c1)c1coc(=O)c(Br)c1
{#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=C(Nc1cccc(F)c1)c1coc(=O)c(Br)c1
O=C(Nc1cccc(F)c1)c1coc(=O)c(Br)c1
5-bromo-N-(5-fluorophenyl)-6-oxopyran-3-carboxamide