Task: Answer the MCQ question.
Query: Which compound exhibits a -18.147\% 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] CCOC(=O)C1=C(OCc2ccc(Cl)cc2)C2C=C(C)C=CC2N=C1
[b] CCOC(=O)N1CCN(C(=O)NC23CC4CC(CC(C4)C2)C3)CC1
[c] CCOC(=O)C1=C(O)C(=O)N(c2ccc(S(N)(=O)=O)cc2)C1c1ccccc1
[d] Cc1ccc(C)c(S(=O)(=O)N2CCCC2CNC(=O)C(=O)NCC2CCCO2)c1
[e] COc1ccc(Cc2nc(-c3ccccn3)no2)cc1OC
Answer: a. CCOC(=O)C1=C(OCc2ccc(Cl)cc2)C2C=C(C)C=CC2N=C1
{#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#}
CCOC(=O)C1=C(OCc2ccc(Cl)cc2)C2C=C(C)C=CC2N=C1
CCOC(=O)C1=C(OCc2ccc(Cl)cc2)C2C=C(C)C=CC2N=C1
ethyl 4-[(4-chlorophenyl)methoxy]-6-methyl-4a,8a-dihydroquinoline-3-carboxylate