Task: Answer the multiple-choice question.
Question: Which drug has a -4.852\% 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 CCC(c1ccccc1)c1nnc(NC(=O)c2ccco2)s1
b O=[N+]([O-])c1cc(Br)c(O)c(/C=N/Nc2nnnn2-c2cccc3ccccc23)c1
Answer: b. O=[N+]([O-])c1cc(Br)c(O)c(/C=N/Nc2nnnn2-c2cccc3ccccc23)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=[N+]([O-])c1cc(Br)c(O)c(/C=N/Nc2nnnn2-c2cccc3ccccc23)c1
O=[N+]([O-])c1cc(Br)c(O)c(/C=N/Nc2nnnn2-c2cccc3ccccc23)c1
2-bromo-6-[(E)-[(1-naphthalen-1-yltetrazol-5-yl)hydrazinylidene]methyl]-4-nitrophenol