Task: Answer the multiple-choice question.
Question: Which drug has a -2.547\% 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 additional words.
Options:
[a] CO/N=C/C(C#N)=C/c1ccc(OC)cc1
[b] COc1ccc(CCNC(=O)CCSc2nc(-c3ccco3)cc(C(F)(F)F)n2)cc1
[c] CCOC(=O)C1CCN(c2ncnc3c2oc2ccc(Br)cc23)CC1
[d] O=C(NCc1ccc2c(c1)OCO2)C1CCCN(S(=O)(=O)c2cccc3cccnc23)C1
[e] NC(=S)N/N=C/c1ccccc1OCc1cccc(Cl)c1
Answer: c. CCOC(=O)C1CCN(c2ncnc3c2oc2ccc(Br)cc23)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#}
ethyl 1-(8-bromo-[1]benzofuro[3,2-d]pyrimidin-4-yl)piperidine-4-carboxylate