Problem statement: Answer the MCQ question.
Query: Which drug has a 8.500\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCOC(=O)Cn1cnc2c(cnn2-c2ccccc2)c1=O
(b) COCC(=O)N1CCC(Oc2ccc(C(=O)NC3Cc4ccccc4C3)cc2)CC1
Answer: a. CCOC(=O)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#}
CCOC(=O)Cn1cnc2c(cnn2-c2ccccc2)c1=O
CCOC(=O)Cn1cnc2c(cnn2-c2ccccc2)c1=O
ethyl2-(4-oxo-1-phenylpyrazolo[3,4-d]pyrimidin-5-yl)acetate