Problem statement: Answer the multiple choice question.
Question: Which compound has a 5.583\% 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.) O=C(O)c1cccnc1Br
b.) COc1ccc(OCc2cc(C(=O)N3CCN(CC4CC4)CC3)no2)c(Cl)c1
Answer: a. O=C(O)c1cccnc1Br
{#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(O)c1cccnc1Br
O=C(O)c1cccnc1Br
2-bromopyridine-3-carboxylic acid