Task: Answer the multiple choice question.
Query: Which drug exhibits a -54.825\% 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 Cn1c(CCN2CCCCC2)nc2cc([N+](=O)[O-])ccc21
b COc1ccc(-c2nc3ccccc3n2Cc2ccccc2)cc1
Answer: a. Cn1c(CCN2CCCCC2)nc2cc([N+](=O)[O-])ccc21
{#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#}
Cn1c(CCN2CCCCC2)nc2cc([N+](=O)[O-])ccc21
Cn1c(CCN2CCCCC2)nc2cc([N+](=O)[O-])ccc21
1-methyl-5-nitro-2-(2-piperidin-1-ylethyl)benzimidazole