Task: Answer the MCQ question.
Query: Which drug has a -1.013\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] COc1ccc(NC(=O)CNC(=O)c2cccs2)cc1Cl
[b] Cc1ccc(NC(=Nc2ccc(Br)cc2)N2CCOCC2)cc1C
Answer: b. Cc1ccc(NC(=Nc2ccc(Br)cc2)N2CCOCC2)cc1C
{#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#}
Cc1ccc(NC(=Nc2ccc(Br)cc2)N2CCOCC2)cc1C
Cc1ccc(NC(=Nc2ccc(Br)cc2)N2CCOCC2)cc1C
N'-(4-bromophenyl)-N-(3,4-dimethylphenyl)morpholine-4-carboximidamide