Problem statement: Answer the multiple-choice question.
Query: Which drug has a -5.329\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=[N+]([O-])c1ccc2nc(SCc3cn4cccnc4n3)[nH]c2c1
b: CN(C)S(=O)(=O)c1cccc(COC(=O)c2ccc(Cl)cc2O)c1
Answer: a. O=[N+]([O-])c1ccc2nc(SCc3cn4cccnc4n3)[nH]c2c1
{#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=[N+]([O-])c1ccc2nc(SCc3cn4cccnc4n3)[nH]c2c1
O=[N+]([O-])c1ccc2nc(SCc3cn4cccnc4n3)[nH]c2c1
2-[(6-nitro-1H-benzimidazol-2-yl)sulfanylmethyl]imidazo[1,2-a]pyrimidine