Task: Answer the MCQ question.
Query: What is the hERG inhibition at a concentration of 1uM of a compound with the SMILES COc1ccc2[nH]c3c(=O)n(CCc4ccccc4)cnc3c2c1?
Constraint: You must return none, one or more options from a or b without using any other words.
Options:
a: 2.728
b: -9.521
Answer: a. 2.728\%.
{#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}.
COc1ccc2[nH]c3c(=O)n(CCc4ccccc4)cnc3c2c1
COc1ccc2[nH]c3c(=O)n(CCc4ccccc4)cnc3c2c1
8-methoxy-3-(2-phenylethyl)-5H-pyrimido[5,4-b]indol-4-one