Task: Answer the multiple choice question.
Query: Which drug exhibits a 17.671\% 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: Cn1cnc2c(cnn2-c2ccccc2)c1=O
b: CC(C)c1ccccc1NC(=O)COc1ccc(C(=O)NCCc2ccccc2)cc1
Answer: a. Cn1cnc2c(cnn2-c2ccccc2)c1=O
{#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#}
Cn1cnc2c(cnn2-c2ccccc2)c1=O
Cn1cnc2c(cnn2-c2ccccc2)c1=O
5-methyl-1-phenylpyrazolo[3,4-d]pyrimidin-4-one