Task: Answer the MCQ question.
Query: Which compound has a -1.781\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. C=C[C@@](C)(O)CC[C@@H]1[C@@]2(C)CCCC(C)(C)[C@@H]2CC[C@@]1(C)O
b. Brc1ccc(CN2CCCCCC2)cc1
Answer: b. Brc1ccc(CN2CCCCCC2)cc1
{#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#}
Brc1ccc(CN2CCCCCC2)cc1
Brc1ccc(CN2CCCCCC2)cc1
1-[(4-bromophenyl)methyl]azepane