Task: Answer the MCQ question.
Query: Which compound exhibits a 0.773\% 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 additional words.
Options:
a) COc1ccc(N(CC(=O)Nc2ccc3c(c2)OCO3)S(=O)(=O)c2c(C)nn(C)c2C)cc1
b) CCC(C)N(C(=O)COc1ccc(Br)cc1C=O)C1CCS(=O)(=O)C1
c) CN(C)c1cccc2cccc(N(C)C)c12
d) COc1ccc2nc(C)cc(N3CCOCC3)c2c1
Answer: b. CCC(C)N(C(=O)COc1ccc(Br)cc1C=O)C1CCS(=O)(=O)C1
{#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#}
2-(4-bromo-2-formylphenoxy)-N-butan-2-yl-N-(1,1-dioxothiolan-3-yl)acetamide