You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[1-[(3,4-dimethoxyphenyl)methyl]-3-oxopiperazin-2-yl]-N-(1-hydroxy-2-methylpropan-2-yl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H29N3O5
assistant