You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(4-chlorophenyl)methyl-[2-(3,4-dimethoxyphenyl)acetyl]amino]-N-(oxolan-2-ylmethyl)propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H31ClN2O5
assistant