You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(2-ethoxyethyl)-3-ethyl-5-N-methyl-7-N-(4-methylpyridin-2-yl)-5-N-pyrrolidin-3-ylpyrazolo[4,3-d]pyrimidine-5,7-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H32N8O
assistant