Task: Answer the multiple-choice question.
Question: Which drug exhibits a -47.239\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a) CC(C)CNC(=S)NC(=O)c1ccc(Cl)cc1
b) CCCCCCn1c(CN2CCN(Cc3ccccc3)CC2)nc2c1c(=O)n(C)c(=O)n2C
c) COP(=S)(OC)c1c(C)nn(CCC#N)c1NC(=O)c1ccc(Cl)cc1
Answer: b. CCCCCCn1c(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]-7-hexyl-1,3-dimethylpurine-2,6-dione