Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 16.421\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCn1c(=O)c2ccccc2n(Cc2cccc([N+](=O)[O-])c2)c1=O
b: COc1ccccc1CNC(=O)/C=C/c1cc2c(cc1Br)OCO2
Answer: a. CCn1c(=O)c2ccccc2n(Cc2cccc([N+](=O)[O-])c2)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#}
CCn1c(=O)c2ccccc2n(Cc2cccc([N+](=O)[O-])c2)c1=O
CCn1c(=O)c2ccccc2n(Cc2cccc([N+](=O)[O-])c2)c1=O
3-ethyl-1-[(3-nitrophenyl)methyl]quinazoline-2,4-dione