Task: Answer the multiple-choice question.
Query: Which compound has a 4.002\% 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) CCCCNC(=O)C1CCN(c2nc(OC)nc(OC)n2)CC1
(b) Cn1cc(C(=O)N2CCN(c3cccc(Cl)c3)CC2)c(=O)c2cc(S(=O)(=O)N3CCOCC3)ccc21
(c) CN(C)CCCN(C(=O)C1=COCCO1)c1nc2ccc(Br)cc2s1.Cl
(d) Cc1ccc(C(=O)OC(C)C(=O)NC2CCCCC2C)s1
(e) CC(=O)Nc1ccc(S(=O)(=O)NNC(=O)COc2ccc(C)cc2)cc1
Answer: a. CCCCNC(=O)C1CCN(c2nc(OC)nc(OC)n2)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#}
CCCCNC(=O)C1CCN(c2nc(OC)nc(OC)n2)CC1
CCCCNC(=O)C1CCN(c2nc(OC)nc(OC)n2)CC1
N-butyl-1-(4,6-dimethoxy-1,3,5-triazin-2-yl)piperidine-4-carboxamide