Task: Answer the MCQ question.
Query: Which drug has a -5.243\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCC(NC(=O)c1ccccc1NC(=O)c1ccccc1)C(=O)OC
b: CCCCCn1c(CN2CCN(C)CC2)nc2c1c(=O)n(C)c(=O)n2C
Answer: b. CCCCCn1c(CN2CCN(C)CC2)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#}
CCCCCn1c(CN2CCN(C)CC2)nc2c1c(=O)n(C)c(=O)n2C
CCCCCn1c(CN2CCN(C)CC2)nc2c1c(=O)n(C)c(=O)n2C
1,3-dimethyl-8-[(4-methylpiperazin-1-yl)methyl]-7-pentylpurine-2,6-dione