Task: Answer the multiple choice question.
Question: Which drug exhibits a 2.692\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a COc1ccc(C(=O)COC(=O)CNC(=O)C2CCCCC2)c(OC)c1
b COC(=O)c1cccc(CSc2nc3ccccc3[nH]2)c1
c CCCCn1c(N2CCC(Cc3ccccc3)CC2)nc2c1c(=O)[nH]c(=O)n2C
d CCCCNc1ccc2nsnc2c1[N+](=O)[O-]
Answer: c. CCCCn1c(N2CCC(Cc3ccccc3)CC2)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#}
CCCCn1c(N2CCC(Cc3ccccc3)CC2)nc2c1c(=O)[nH]c(=O)n2C
CCCCn1c(N2CCC(Cc3ccccc3)CC2)nc2c1c(=O)[nH]c(=O)n2C
8-(4-benzylpiperidin-1-yl)-7-butyl-3-methylpurine-2,6-dione