Task: Answer the multiple choice question.
Question: Which compound has a 20.825\% 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: COC(c1ccccc1)c1nc2ccccc2[nH]c1=O
b: CCc1c(C)nc(SCC(=O)N2C(C)CCCC2C)[nH]c1=O
Answer: b. CCc1c(C)nc(SCC(=O)N2C(C)CCCC2C)[nH]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#}
CCc1c(C)nc(SCC(=O)N2C(C)CCCC2C)[nH]c1=O
CCc1c(C)nc(SCC(=O)N2C(C)CCCC2C)[nH]c1=O
2-[2-(2,6-dimethylpiperidin-1-yl)-2-oxoethyl]sulfanyl-5-ethyl-4-methyl-1H-pyrimidin-6-one