Problem statement: Answer the MCQ question.
Query: Which drug exhibits a -3.180\% 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 O=C(COc1c(Br)cc(Br)c2cccnc12)N1CCCCC1
b COc1ccc(OCC(=O)N/N=C2\CCc3ccccc32)cc1
c C=CCNC(=O)CCCc1ccccc1
d O=C1CCCN1CCCNc1ncnc2c1[nH]c1ccccc12
e O=c1cc(C(Cl)(Cl)Cl)oc2c1ccc1ccccc12
Answer: a. O=C(COc1c(Br)cc(Br)c2cccnc12)N1CCCCC1
{#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#}
2-(5,7-dibromoquinolin-8-yl)oxy-1-piperidin-1-ylethanone