Task: Answer the multiple-choice question.
Question: Which compound exhibits a 19.567\% 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.) Cn1c(-c2cc(Br)ccc2O)n[nH]c1=S
b.) O=C(Nc1ccc(N2CCN(C(=O)c3cccs3)CC2)cc1)c1ccco1
c.) CCOC(=O)CCNCC1COc2ccccc2O1.Cl
Answer: a. Cn1c(-c2cc(Br)ccc2O)n[nH]c1=S
{#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(-c2cc(Br)ccc2O)n[nH]c1=S
Cn1c(-c2cc(Br)ccc2O)n[nH]c1=S
3-(5-bromo-2-hydroxyphenyl)-4-methyl-1H-1,2,4-triazole-5-thione