Task: Answer the MCQ question.
Question: Which compound exhibits a 2.111\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a CCC(C)NCCCCOc1ccc(C)cc1[N+](=O)[O-].O=C(O)C(=O)O
b O=C(Nc1ncn[nH]1)c1ccccc1Br
c Cc1ccc(C(=O)N(C)c2ccc(OCC(=O)N3c4ccc(C)cc4C4CN(C)CCC43)cc2)cc1.Cl
d CCOC(=O)C1CCCN(c2c(NCC3CCCO3)c(=O)c2=O)C1
e Cc1ccc(C(=O)C2=C(O)C(=O)N(Cc3cccnc3)C2c2cccc(Oc3ccccc3)c2)o1
Answer: b. O=C(Nc1ncn[nH]1)c1ccccc1Br
{#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#}
O=C(Nc1ncn[nH]1)c1ccccc1Br
O=C(Nc1ncn[nH]1)c1ccccc1Br
2-bromo-N-(1H-1,2,4-triazol-5-yl)benzamide