You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-cyclopropyl-4-[4-[(1S)-1-[(6S)-6-(2-hydroxy-2-methylpropyl)-2-oxo-6-phenyl-1,3-oxazinan-3-yl]ethyl]phenyl]-2,2-dimethylbut-3-ynamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H38N2O4
assistant