Task: Answer the multiple-choice question.
Query: Which drug has a 16.538\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=[N+]([O-])c1ccc2c(c1)C(N1CCOCC1)/C(=C/COc1ccc3ccccc3c1Br)O2
[b] CC1(C)Cc2c(cnn2-c2ccccc2)-c2c1c1ccccc1n2CC(O)CCl
Answer: a. O=[N+]([O-])c1ccc2c(c1)C(N1CCOCC1)/C(=C/COc1ccc3ccccc3c1Br)O2
{#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-])c1ccc2c(c1)C(N1CCOCC1)/C(=C/COc1ccc3ccccc3c1Br)O2
O=[N+]([O-])c1ccc2c(c1)C(N1CCOCC1)/C(=C/COc1ccc3ccccc3c1Br)O2
4-[(2Z)-2-[2-(1-bromonaphthalen-2-yl)oxyethylidene]-5-nitro-3H-1-benzofuran-3-yl]morpholine