Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a -18.646% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=C1C2C3C=CC(C3)C2C(=O)N1c1ccc(N2CCN(c3ccccn3)CC2)c([N+](=O)[O-])c1
[b] c1ccc2[nH]c(-c3ccncc3)nc2c1
Answer: a. O=C1C2C3C=CC(C3)C2C(=O)N1c1ccc(N2CCN(c3ccccn3)CC2)c([N+](=O)[O-])c1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C1C2C3C=CC(C3)C2C(=O)N1c1ccc(N2CCN(c3ccccn3)CC2)c([N+](=O)[O-])c1
O=C1C2C3C=CC(C3)C2C(=O)N1c1ccc(N2CCN(c3ccccn3)CC2)c([N+](=O)[O-])c1
4-[3-nitro-4-(4-pyridin-2-ylpiperazin-1-yl)phenyl]-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione