You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-[4-[3-[(4S)-2-amino-4,5-dihydro-1,3-oxazol-4-yl]propyl]phenyl]-N-(4-fluorophenyl)acetamide ?
user
C20H22FN3O2
assistant