You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(6,8-dihydro-5H-[1,2,4]triazolo[3,4-c][1,4]oxazin-3-ylmethyl)-3-[(4-methylphenyl)methyl]azetidine-1-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H23N5O2
assistant