You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 6-methyl-2-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]furo[3,2-b]pyridine-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H19NO5
assistant