Task: Answer the multiple choice question.
Query: Which drug exhibits a 16.140\% 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.) Oc1c(Br)cc(/C=N/Nc2nncc3ccccc23)cc1Br
b.) Cc1c(NC(=O)COC(=O)Cc2ccc(Cl)cc2)c(=O)n(-c2ccccc2)n1C
Answer: a. Oc1c(Br)cc(/C=N/Nc2nncc3ccccc23)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#}
2,6-dibromo-4-[(E)-(phthalazin-1-ylhydrazinylidene)methyl]phenol