Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 20.581\% 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] O=C(COC(=O)c1ccc([N+](=O)[O-])cc1Cl)NC(=O)c1ccccc1
[b] O=C(COc1cc(Cl)ccc1Cl)Nc1ccc2[nH]c(=O)[nH]c2c1
Answer: b. O=C(COc1cc(Cl)ccc1Cl)Nc1ccc2[nH]c(=O)[nH]c2c1
{#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=C(COc1cc(Cl)ccc1Cl)Nc1ccc2[nH]c(=O)[nH]c2c1
O=C(COc1cc(Cl)ccc1Cl)Nc1ccc2[nH]c(=O)[nH]c2c1
2-(2,5-dichlorophenoxy)-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)acetamide