Problem statement: Answer the MCQ question.
Question: Which compound has a 5.457\% 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: Cn1c(=O)c2[nH]cnc2n(-c2ccccc2)c1=O
b: COc1ccc(N2CC(C(=O)N[C@@H](C)C(=O)NCc3ccccc3OC)CC2=O)cc1
Answer: a. Cn1c(=O)c2[nH]cnc2n(-c2ccccc2)c1=O
{#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#}
Cn1c(=O)c2[nH]cnc2n(-c2ccccc2)c1=O
Cn1c(=O)c2[nH]cnc2n(-c2ccccc2)c1=O
1-methyl-3-phenyl-7H-purine-2,6-dione