Problem statement: Answer the MCQ question.
Question: What is the hERG inhibition at a concentration of 1uM of a drug with the SMILES O=c1ccc2cc3c([nH]c4ccc(Br)cc43)oc-2c1O?
Constraint: You must return none, one or more options from a, b, c, or d without using any other words.
Options:
a. 4.163
b. 8.188
c. 0.724
d. 0.134
Answer: a. 4.163\%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_1uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_1uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_1uM#}{herg_central_at_1uM__units}.
9-bromo-4-hydroxy-6H-chromeno[2,3-b]indol-3-one