Task: Answer the MCQ question.
Question: Which drug exhibits a 12.158\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C1OCc2cc(N=Nc3c(O)[nH]c(=O)[nH]c3=O)ccc21
(b) CC1=CN2C(=N)/C(=C/c3ccc(C)o3)C(=O)N=C2S1
Answer: a. O=C1OCc2cc(N=Nc3c(O)[nH]c(=O)[nH]c3=O)ccc21
{#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=C1OCc2cc(N=Nc3c(O)[nH]c(=O)[nH]c3=O)ccc21
O=C1OCc2cc(N=Nc3c(O)[nH]c(=O)[nH]c3=O)ccc21
6-hydroxy-5-[(1-oxo-3H-2-benzofuran-5-yl)diazenyl]-1H-pyrimidine-2,4-dione