Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 12.694\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a COCCCNc1nc2c(c(=O)n(Cc3cccc(Br)c3)c(=O)n2C)n1C
b NC(N)=NCC(O)CN(c1ccccc1)c1ccccc1.O=S(=O)(O)O
Answer: a. COCCCNc1nc2c(c(=O)n(Cc3cccc(Br)c3)c(=O)n2C)n1C
{#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#}
COCCCNc1nc2c(c(=O)n(Cc3cccc(Br)c3)c(=O)n2C)n1C
COCCCNc1nc2c(c(=O)n(Cc3cccc(Br)c3)c(=O)n2C)n1C
1-[(3-bromophenyl)methyl]-8-(3-methoxypropylamino)-3,7-dimethylpurine-2,6-dione