You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-(2-hydroxypropyl)pyrrolidin-1-yl]-N-(1,3,5-trimethylpyrazol-4-yl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H26N4O2
assistant