Task: Answer the multiple-choice question.
Query: Which compound exhibits a 18.791\% 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: CCN1C(=O)CSc2ccc(C(=O)NC3CCCCC3)cc21
b: Cc1cn(C(=O)c2ccccc2)c(=S)n1-c1ccc(Br)cc1
c: CC1(C)CC(=NO)CC(C)(C)N1
d: Cc1cccc(CSc2nnc(-c3ccco3)n2C)c1
Answer: b. Cc1cn(C(=O)c2ccccc2)c(=S)n1-c1ccc(Br)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#}
Cc1cn(C(=O)c2ccccc2)c(=S)n1-c1ccc(Br)cc1
Cc1cn(C(=O)c2ccccc2)c(=S)n1-c1ccc(Br)cc1
[3-(4-bromophenyl)-4-methyl-2-sulfanylideneimidazol-1-yl]-phenylmethanone