Task: Answer the multiple choice question.
Query: Which drug has a -0.266\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCN1CCN(c2oc(-c3ccc([N+](=O)[O-])cc3)nc2C#N)CC1
b: COc1ccc(OC)c(CN2C(=O)CCC2(C)C(=O)NC2CCCCCC2)c1
Answer: a. CCN1CCN(c2oc(-c3ccc([N+](=O)[O-])cc3)nc2C#N)CC1
{#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#}
CCN1CCN(c2oc(-c3ccc([N+](=O)[O-])cc3)nc2C#N)CC1
CCN1CCN(c2oc(-c3ccc([N+](=O)[O-])cc3)nc2C#N)CC1
5-(4-ethylpiperazin-1-yl)-2-(4-nitrophenyl)-1,3-oxazole-4-carbonitrile