Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a -2.187\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a COc1cc(NC(=O)c2ccc3c(c2)OCCO3)ccc1NC(=O)c1ccccc1Cl
b O=C1CCS/C(=N\N=C\c2ccc(Cl)cc2Cl)N1
Answer: b. O=C1CCS/C(=N\N=C\c2ccc(Cl)cc2Cl)N1
{#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=C1CCS/C(=N\N=C\c2ccc(Cl)cc2Cl)N1
O=C1CCS/C(=N\N=C\c2ccc(Cl)cc2Cl)N1
(2Z)-2-[(E)-(2,4-dichlorophenyl)methylidenehydrazinylidene]-1,3-thiazinan-4-one