Task: Answer the MCQ question.
Query: Which compound exhibits a 1.646% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] CC(C)(C)NS(=O)(=O)c1ccc(NC(=O)Cc2ccccc2[N+](=O)[O-])cc1
[b] Cn1c(SCc2ccccc2Cl)nc(C(F)(F)F)cc1=O
Answer: b. Cn1c(SCc2ccccc2Cl)nc(C(F)(F)F)cc1=O
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Cn1c(SCc2ccccc2Cl)nc(C(F)(F)F)cc1=O
Cn1c(SCc2ccccc2Cl)nc(C(F)(F)F)cc1=O
2-[(2-chlorophenyl)methylsulfanyl]-3-methyl-6-(trifluoromethyl)pyrimidin-4-one