Task: Answer the multiple-choice question.
Question: Which compound has a 18.945\% 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 additional words.
Options:
a COc1ccccc1Nc1cc2cc(Br)ccc2c(=O)[nH]1
b Cc1[nH]c(=S)[nH]c(=O)c1Cc1ccc(OCC(C)C)cc1
Answer: a. COc1ccccc1Nc1cc2cc(Br)ccc2c(=O)[nH]1
{#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#}
COc1ccccc1Nc1cc2cc(Br)ccc2c(=O)[nH]1
COc1ccccc1Nc1cc2cc(Br)ccc2c(=O)[nH]1
6-bromo-3-(2-methoxyanilino)-2H-isoquinolin-1-one