Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 21.717\% 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] CCOP(=O)(OCC)c1nc(-c2ccc(Br)cc2)oc1N1CCCCC1
[b] CC(C)=CC(=O)NCc1c(Cl)cccc1-n1cccc1
Answer: b. CC(C)=CC(=O)NCc1c(Cl)cccc1-n1cccc1
{#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(C)=CC(=O)NCc1c(Cl)cccc1-n1cccc1
CC(C)=CC(=O)NCc1c(Cl)cccc1-n1cccc1
N-[(2-chloro-6-pyrrol-1-ylphenyl)methyl]-3-methylbut-2-enamide