You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3,5-dimethyl-N-[1-(oxan-4-ylmethyl)pyrazol-4-yl]-1,2-oxazole-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H20N4O3
assistant