Task: Answer the multiple-choice question.
Query: Which drug exhibits a 5.989\% 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.) COC(=O)[C@@H](NC(=O)Nc1cccc(Br)c1)C(C)C
b.) Br.CCOc1ccccc1OCC(=O)NN1Cc2ccccc2C1=N
Answer: a. COC(=O)[C@@H](NC(=O)Nc1cccc(Br)c1)C(C)C
{#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#}
COC(=O)[C@@H](NC(=O)Nc1cccc(Br)c1)C(C)C
COC(=O)[C@@H](NC(=O)Nc1cccc(Br)c1)C(C)C
methyl (2S)-2-[(3-bromophenyl)carbamoylamino]-3-methylbutanoate