Task: Answer the multiple-choice question.
Query: Which compound has a 12.397\% 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=C1NC(=O)C(Cc2c[nH]c3ccccc23)N1
(b) Cc1cc(C)cc(NC(=S)NCc2ccc3c(c2)OCO3)c1
Answer: a. O=C1NC(=O)C(Cc2c[nH]c3ccccc23)N1
{#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=C1NC(=O)C(Cc2c[nH]c3ccccc23)N1
O=C1NC(=O)C(Cc2c[nH]c3ccccc23)N1
5-(1H-indol-3-ylmethyl)imidazolidine-2,4-dione