Task: Answer the MCQ question.
Query: Which compound exhibits a -2.527\% 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) CC1(C)Cc2ccccc2C(N/N=C/c2cccc(F)c2)=N1.Cl
(b) O=C(Nc1ccc(N2CCOCC2)cc1)Nc1ccc2nc(-c3ccco3)c(-c3ccco3)nc2c1
Answer: b. O=C(Nc1ccc(N2CCOCC2)cc1)Nc1ccc2nc(-c3ccco3)c(-c3ccco3)nc2c1
{#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(Nc1ccc(N2CCOCC2)cc1)Nc1ccc2nc(-c3ccco3)c(-c3ccco3)nc2c1
O=C(Nc1ccc(N2CCOCC2)cc1)Nc1ccc2nc(-c3ccco3)c(-c3ccco3)nc2c1
1-[2,3-bis(furan-2-yl)quinoxalin-6-yl]-3-(4-morpholin-4-ylphenyl)urea