Task: Answer the MCQ question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM of a compound with the SMILES CCOC1OC2C(CO)OC(n3cnc4c(N)ncnc43)C2O1?
Constraint: You must return none, one or more options from a or b without using any other words.
Options:
[a] -2.728
[b] 13.127
Answer: b. 13.127\%.
{#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}.
CCOC1OC2C(CO)OC(n3cnc4c(N)ncnc43)C2O1
CCOC1OC2C(CO)OC(n3cnc4c(N)ncnc43)C2O1
[4-(6-aminopurin-9-yl)-2-ethoxy-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methanol