Task: Answer the multiple-choice question.
Query: Which compound exhibits a -5.013\% 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] COc1cccc(C(=O)Nc2cccnc2)c1
[b] O=c1nc2n(c3ccc([N+](=O)[O-])cc13)CCCCC2
Answer: b. O=c1nc2n(c3ccc([N+](=O)[O-])cc13)CCCCC2
{#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=c1nc2n(c3ccc([N+](=O)[O-])cc13)CCCCC2
O=c1nc2n(c3ccc([N+](=O)[O-])cc13)CCCCC2
3-nitro-8,9,10,11-tetrahydro-7H-azepino[1,2-a]quinazolin-5-one