Problem statement: Answer the multiple-choice question.
Query: Which compound has a 6.428\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a) CCOc1ccc(NC(=O)CN(C)CC(=O)NC2CCCc3ccccc32)cc1OCC
b) CC(=O)N1CCN(c2ccc(NCc3ccc(Br)o3)cc2)CC1
c) O=C(O)CCC(=O)Nc1ccc(Br)c(Cl)c1
d) O=C(CCCSc1nc2ccccc2[nH]1)Nc1nnc(-c2ccccc2)o1
Answer: b. CC(=O)N1CCN(c2ccc(NCc3ccc(Br)o3)cc2)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#}
1-[4-[4-[(5-bromofuran-2-yl)methylamino]phenyl]piperazin-1-yl]ethanone