Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 18.370\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] CN(C)C(=O)c1c(-c2ccccc2)oc2ccc(O)cc12
[b] COCCn1c(SCCN2CCOCC2)nc2c1c(=O)[nH]c(=O)n2C
Answer: b. COCCn1c(SCCN2CCOCC2)nc2c1c(=O)[nH]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#}
COCCn1c(SCCN2CCOCC2)nc2c1c(=O)[nH]c(=O)n2C
COCCn1c(SCCN2CCOCC2)nc2c1c(=O)[nH]c(=O)n2C
7-(2-methoxyethyl)-3-methyl-8-(2-morpholin-4-ylethylsulfanyl)purine-2,6-dione