Task: Answer the multiple-choice question.
Query: Which drug has a 5.306\% 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 other words.
Options:
a COc1ccc(N2CCN(C(=O)CCS(=O)(=O)c3ccc(OC)cc3)CC2)cc1
b CC(C)C(=O)Nc1ccc(C(=O)NNC(=O)C(c2ccccc2)c2ccccc2)cc1
c CCOc1ccccc1N1CCN(C(=O)CC(C)(C)C)CC1
d Cc1cc(N2CCN(c3nc(-c4ccc([N+](=O)[O-])cc4)cs3)CC2)c2ccccc2n1
e CCC12CN3CC(CC)(CN(C1)C3c1ccc(OC(C)C)cc1)C2=O
Answer: c. CCOc1ccccc1N1CCN(C(=O)CC(C)(C)C)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#}
CCOc1ccccc1N1CCN(C(=O)CC(C)(C)C)CC1
CCOc1ccccc1N1CCN(C(=O)CC(C)(C)C)CC1
1-[4-(2-ethoxyphenyl)piperazin-1-yl]-3,3-dimethylbutan-1-one