Problem statement: Answer the multiple choice question.
Query: Which compound has a 21.302\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) O=C1c2ccccc2N2C(=O)c3ccccc3C2N1O
b) CCn1c(N2CCN(C(=O)NC3CCCCC3)CC2)nc2ccccc21
Answer: a. O=C1c2ccccc2N2C(=O)c3ccccc3C2N1O
{#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=C1c2ccccc2N2C(=O)c3ccccc3C2N1O
O=C1c2ccccc2N2C(=O)c3ccccc3C2N1O
6-hydroxy-6aH-isoindolo[2,3-a]quinazoline-5,11-dione