Task: Answer the multiple choice question.
Question: Which compound has a 17.584\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] O=C(Cn1nnc2ccccc2c1=O)NC1CCCc2ccccc21
[b] O=C1CCCc2c1[nH]c1ccc(Br)cc21
[c] CCOC(=O)c1cnc(SCC(=O)Nc2ccc(NC(C)=O)c(OC)c2)nc1N
Answer: b. O=C1CCCc2c1[nH]c1ccc(Br)cc21
{#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=C1CCCc2c1[nH]c1ccc(Br)cc21
O=C1CCCc2c1[nH]c1ccc(Br)cc21
[O][=C][C][C][C][C][=C][Ring1][=Branch1][NH1][C][=C][C][=C][Branch1][C][Br][C][=C][Ring1][#Branch2][Ring1][#Branch1]
6-bromo-2,3,4,9-tetrahydrocarbazol-1-one