Problem statement: Answer the multiple-choice question.
Query: Which compound has a 20.511\% 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. Cc1ccccc1C(=O)N1CCN(c2ccc([N+](=O)[O-])c(NCc3cccnc3)c2)CC1
b. O=C(COC(=O)C1=COCCO1)Nc1ccccc1
Answer: b. O=C(COC(=O)C1=COCCO1)Nc1ccccc1
{#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(COC(=O)C1=COCCO1)Nc1ccccc1
O=C(COC(=O)C1=COCCO1)Nc1ccccc1
(2-anilino-2-oxoethyl) 2,3-dihydro-1,4-dioxine-5-carboxylate