Task: Answer the MCQ question.
Question: Which drug has a 6.698\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CC1CCN(CCCNC(=O)C2CCCN(c3ncnc4c3nc3n4CCCCC3)C2)CC1
[b] COC(=O)N=Nc1c(O)[nH]c2ccc(Br)cc12
Answer: b. COC(=O)N=Nc1c(O)[nH]c2ccc(Br)cc12
{#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#}
COC(=O)N=Nc1c(O)[nH]c2ccc(Br)cc12
COC(=O)N=Nc1c(O)[nH]c2ccc(Br)cc12
methyl N-[(5-bromo-2-hydroxy-1H-indol-3-yl)imino]carbamate