You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(2-methoxyphenyl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyridine-1,6-dicarboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H16N2O5
assistant