Task: Answer the multiple choice question.
Query: Which compound has a 5.390\% 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 other words.
Options:
a: O=C(NCCCNCc1ccccc1)/C(=N\O)c1ccccc1
b: CN1CCN(C2=Nc3c(Cl)cc(Cl)c4cccc2c34)CC1
c: CCOc1ccccc1NC(=O)N1CCCC1C(=O)Nc1ccc(-n2cnnn2)c(C)c1
d: O=[N+]([O-])c1ccc(Cl)c2cccnc12
e: CC(CC(=O)O)Nc1ccccc1O
Answer: b. CN1CCN(C2=Nc3c(Cl)cc(Cl)c4cccc2c34)CC1
{#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#}
6,8-dichloro-2-(4-methylpiperazin-1-yl)benzo[cd]indole