Task: Answer the multiple-choice question.
Query: Which drug exhibits a 12.680\% 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) CCOCCn1c(CN2CCCCC2C)nc2c1c(=O)n(C)c(=O)n2C
(b) CN(C)c1ncnc2sc(-c3ccccc3)cc12
Answer: a. CCOCCn1c(CN2CCCCC2C)nc2c1c(=O)n(C)c(=O)n2C
{#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#}
CCOCCn1c(CN2CCCCC2C)nc2c1c(=O)n(C)c(=O)n2C
CCOCCn1c(CN2CCCCC2C)nc2c1c(=O)n(C)c(=O)n2C
7-(2-ethoxyethyl)-1,3-dimethyl-8-[(2-methylpiperidin-1-yl)methyl]purine-2,6-dione