Task: Answer the multiple choice question.
Query: Which compound has a -13.972\% 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: CCCc1nc(SCc2ccccn2)c2c(=O)n(C)c(=O)n(C)c2n1
b: Cc1cc(C)nc(SCC(=O)NCC2COc3ccccc3O2)n1
Answer: a. CCCc1nc(SCc2ccccn2)c2c(=O)n(C)c(=O)n(C)c2n1
{#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#}
CCCc1nc(SCc2ccccn2)c2c(=O)n(C)c(=O)n(C)c2n1
CCCc1nc(SCc2ccccn2)c2c(=O)n(C)c(=O)n(C)c2n1
1,3-dimethyl-7-propyl-5-(pyridin-2-ylmethylsulfanyl)pyrimido[4,5-d]pyrimidine-2,4-dione