Task: Answer the multiple choice question.
Question: Which drug has a 5.827\% 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)c2c(nc(Br)n2Cc2ccc3ccccc3c2)n(C)c1=O
(b) COc1cc2c(cc1OC)CN(C1CC(=O)N(c3c(C)cccc3C)C1=O)CC2
Answer: a. Cn1c(=O)c2c(nc(Br)n2Cc2ccc3ccccc3c2)n(C)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)c2c(nc(Br)n2Cc2ccc3ccccc3c2)n(C)c1=O
Cn1c(=O)c2c(nc(Br)n2Cc2ccc3ccccc3c2)n(C)c1=O
8-bromo-1,3-dimethyl-7-(naphthalen-2-ylmethyl)purine-2,6-dione