Task: Answer the multiple-choice question.
Query: Which drug exhibits a 2.388\% human ether-à-go-go related gene (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) O=c1cnnc(NCc2ccccc2)[nH]1
b) Nn1c(COc2ccccc2)nc2ccccc2c1=O
Answer: b. Nn1c(COc2ccccc2)nc2ccccc2c1=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#}
Nn1c(COc2ccccc2)nc2ccccc2c1=O
Nn1c(COc2ccccc2)nc2ccccc2c1=O
3-amino-2-(phenoxymethyl)quinazolin-4-one