Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 6.246\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CC1=C(C(=O)OCc2ccccc2)C(c2cccc([N+](=O)[O-])c2)NC(=O)N1C
b: COc1cccc(CC(=O)Nc2ccc3nc(C)sc3c2)c1
Answer: a. CC1=C(C(=O)OCc2ccccc2)C(c2cccc([N+](=O)[O-])c2)NC(=O)N1C
{#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#}
CC1=C(C(=O)OCc2ccccc2)C(c2cccc([N+](=O)[O-])c2)NC(=O)N1C
CC1=C(C(=O)OCc2ccccc2)C(c2cccc([N+](=O)[O-])c2)NC(=O)N1C
benzyl 3,4-dimethyl-6-(3-nitrophenyl)-2-oxo-1,6-dihydropyrimidine-5-carboxylate