Task: Answer the multiple-choice question.
Question: Which compound has a 13.425\% 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) Cc1cc2[nH]c(=O)cc(-c3ccccc3)n2n1
b) COc1ccc(-c2c3c(=O)n(C)c(=O)n(C)c3cn2-c2ccc(O)cc2)cc1
Answer: a. Cc1cc2[nH]c(=O)cc(-c3ccccc3)n2n1
{#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#}
Cc1cc2[nH]c(=O)cc(-c3ccccc3)n2n1
Cc1cc2[nH]c(=O)cc(-c3ccccc3)n2n1
2-methyl-7-phenyl-4H-pyrazolo[1,5-a]pyrimidin-5-one