Task: Answer the multiple-choice question.
Query: Which drug exhibits a 20.216\% human ether-à-go-go related gene (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(N3CCOCC3)n2CCc2ccccc2)n(C)c1=O
[b] CCCCS(=O)(=O)C1CCS(=O)(=O)C1
Answer: a. Cn1c(=O)c2c(nc(N3CCOCC3)n2CCc2ccccc2)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(N3CCOCC3)n2CCc2ccccc2)n(C)c1=O
Cn1c(=O)c2c(nc(N3CCOCC3)n2CCc2ccccc2)n(C)c1=O
1,3-dimethyl-8-morpholin-4-yl-7-(2-phenylethyl)purine-2,6-dione