You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (3S,3aS,6aS)-1-benzyl-3-[(2R)-oxolan-2-yl]-3,3a,6,6a-tetrahydrofuro[3,4-c][1,2]oxazol-4-one .
user
C16H19NO4
assistant