Problem statement: Answer the multiple choice question.
Query: Which drug has a 2.657\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CN1C(=O)C(C)(C)c2cc(S(=O)(=O)N3CCCC3C(=O)NCc3ccccc3Cl)ccc21
b: Cn1c(=O)c2c(ncn2CCOc2ccc(Br)cc2)n(C)c1=O
c: CCCCCC(O)(CCN1CCCCC1)c1ccccc1.Cl
d: CCNc1nc(C23CC4CC(CC(C4)C2)C3)cs1.Cl
Answer: b. Cn1c(=O)c2c(ncn2CCOc2ccc(Br)cc2)n(C)c1=O
{#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#}
Cn1c(=O)c2c(ncn2CCOc2ccc(Br)cc2)n(C)c1=O
Cn1c(=O)c2c(ncn2CCOc2ccc(Br)cc2)n(C)c1=O
7-[2-(4-bromophenoxy)ethyl]-1,3-dimethylpurine-2,6-dione