Task: Answer the MCQ question.
Question: Which compound exhibits a 13.865\% 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: CCCOC(=O)CC1C(=O)NCCN1Cc1ccccc1C
b: Cc1ccc(N2C3=C(C(=O)CC(C)(C)C3)C(c3cn(C)nc3C)C3=C2CC(C)(C)CC3=O)cc1
c: O=C(c1ccco1)N1CCN(C(=O)C2CCN(S(=O)(=O)c3cccc4nsnc34)CC2)CC1
d: CCn1ccnc1C(O)c1cccc(OC)c1
e: CN(C)CCC(=O)c1cccc(Br)c1.Cl
Answer: a. CCCOC(=O)CC1C(=O)NCCN1Cc1ccccc1C
{#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#}
propyl 2-[1-[(2-methylphenyl)methyl]-3-oxopiperazin-2-yl]acetate