Task: Answer the multiple-choice question.
Query: Which compound exhibits a -0.856\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] COC(=O)CCC(=O)c1oc2ccccc2c1N
[b] O=C([C@H](Cc1ccccc1)NS(=O)(=O)c1ccc(Cl)cc1)N1CC[C@@]2(O)CCCC[C@H]2C1
[c] CCn1c(N2CCN(CC(=O)Nc3cccc(C)c3C)CC2)nc2ccccc21
[d] O=C(Nc1ccc2nc(-c3cccs3)c(-c3cccs3)nc2c1)NC1CC1
[e] COc1ccc(C2=COc3ccccc3C(=O)N2)cc1
Answer: a. COC(=O)CCC(=O)c1oc2ccccc2c1N
{#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#}
COC(=O)CCC(=O)c1oc2ccccc2c1N
COC(=O)CCC(=O)c1oc2ccccc2c1N
methyl 4-(3-amino-1-benzofuran-2-yl)-4-oxobutanoate