Task: Answer the MCQ question.
Query: What is the human ether-à-go-go related gene (hERG) inhibition at 1uM of a compound with the SMILES COc1ncnc2c1oc1ccccc12?
Constraint: You must return none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) 12.298
(b) 17.978
(c) 13.481
(d) 12.647
(e) -2.662
Answer: a. 12.298\%.
{#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}.
4-methoxy-[1]benzofuro[3,2-d]pyrimidine