Task: Answer the multiple-choice question.
Question: Which compound exhibits a 3.953\% 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. CC(=O)C1=C(O)C(=O)N(CCN2CCOCC2)C1c1ccc(N(C)C)cc1.Cl
b. COc1cccc(OC)c1C(=O)NCCOc1cc(C)cc(C)c1
Answer: a. CC(=O)C1=C(O)C(=O)N(CCN2CCOCC2)C1c1ccc(N(C)C)cc1.Cl
{#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#}
CC(=O)C1=C(O)C(=O)N(CCN2CCOCC2)C1c1ccc(N(C)C)cc1.Cl
CC(=O)C1=C(O)C(=O)N(CCN2CCOCC2)C1c1ccc(N(C)C)cc1.Cl
3-acetyl-2-[4-(dimethylamino)phenyl]-4-hydroxy-1-(2-morpholin-4-ylethyl)-2H-pyrrol-5-one;hydrochloride