Task: Answer the multiple choice question.
Question: Which compound exhibits a 12.778\% 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, b, c, d, or e without using any additional words.
Options:
a CN(C)/C=N/S(=O)(=O)c1ccc(Cl)cc1
b Cc1ccc(NC(=O)CN(C)C(C)C(=O)Nc2ccc(S(=O)(=O)N3CCCC3)cc2)cc1
c Cc1ccc(C)c(S(=O)(=O)N2CCCC2CNC(=O)C(=O)NCCc2ccco2)c1
d COCCn1c(N2CCCC2)nc2c1c(=O)[nH]c(=O)n2C
e CC(=O)c1ccc(N2CCN(C(=O)c3nn(C)c4c3CS(=O)(=O)c3ccccc3-4)CC2)cc1
Answer: d. COCCn1c(N2CCCC2)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(N2CCCC2)nc2c1c(=O)[nH]c(=O)n2C
COCCn1c(N2CCCC2)nc2c1c(=O)[nH]c(=O)n2C
7-(2-methoxyethyl)-3-methyl-8-pyrrolidin-1-ylpurine-2,6-dione