Task: Answer the multiple-choice question.
Query: Which compound exhibits a 11.833\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. Nc1ncnc2c1ncn2CCc1ccccc1
b. O=C(c1cccn2c(=O)c3cc(Br)ccc3nc12)N1CCC2(CC1)OCCO2
c. O=C(COC(=O)C12CC3CC(CC(C3)C1)C2)Nc1ccc([N+](=O)[O-])cc1Cl
Answer: a. Nc1ncnc2c1ncn2CCc1ccccc1
{#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#}
Nc1ncnc2c1ncn2CCc1ccccc1
Nc1ncnc2c1ncn2CCc1ccccc1
9-(2-phenylethyl)purin-6-amine