Task: Answer the multiple choice question.
Query: Which compound has a 2.161\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a Nc1ncccc1OCc1ccc(Br)cc1
b O=C1c2ccccc2C(=O)C1c1ccnc2ccccc12
c COc1ccc(Br)cc1C(=O)NC(=S)Nc1ccc(CN2CCOCC2)cc1
Answer: a. Nc1ncccc1OCc1ccc(Br)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#}
3-[(4-bromophenyl)methoxy]pyridin-2-amine