Task: Answer the multiple-choice question.
Query: Which drug exhibits a -0.165\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCCCCCn1c(CN2CCCCC2)nc2c1c(=O)n(C)c(=O)n2C
b: COc1ccc(N(C(=O)c2snc(C(N)=O)c2N)C(C(=O)NC2CCCC2)c2ccc3ncccc3c2)cc1
Answer: a. CCCCCCn1c(CN2CCCCC2)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#}
CCCCCCn1c(CN2CCCCC2)nc2c1c(=O)n(C)c(=O)n2C
CCCCCCn1c(CN2CCCCC2)nc2c1c(=O)n(C)c(=O)n2C
7-hexyl-1,3-dimethyl-8-(piperidin-1-ylmethyl)purine-2,6-dione