Task: Answer the multiple-choice question.
Question: Which compound has a 1.902\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a N#CC1=C(N)Oc2c(c(=O)oc3ccccc23)C1c1ccncc1
b COc1ccc(/C=N\NC(=O)c2ccccc2)cc1COc1ccccc1
Answer: a. N#CC1=C(N)Oc2c(c(=O)oc3ccccc23)C1c1ccncc1
{#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#}
N#CC1=C(N)Oc2c(c(=O)oc3ccccc23)C1c1ccncc1
N#CC1=C(N)Oc2c(c(=O)oc3ccccc23)C1c1ccncc1
2-amino-5-oxo-4-pyridin-4-yl-4H-pyrano[3,2-c]chromene-3-carbonitrile