Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a -57.855\% 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] CCCCCn1c(CN2CCN(Cc3ccccc3)CC2)nc2c1c(=O)n(C)c(=O)n2C
[b] O=C(Nc1ccc2c(c1)OCO2)c1ccccc1SCC(=O)N1CCCC1
[c] Cc1cccc(CS(=O)(=O)Cc2ccc(C(=O)N3CCC4(CC3)OCCO4)o2)c1
[d] NC(=O)c1ccc(Cl)c2ccccc12
[e] C=CCn1c(N)c(C(=O)NCc2ccco2)sc1=S
Answer: a. CCCCCn1c(CN2CCN(Cc3ccccc3)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#}
8-[(4-benzylpiperazin-1-yl)methyl]-1,3-dimethyl-7-pentylpurine-2,6-dione