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 (2S,4aR,8aR)-7-[[(Z)-3-oxo-3-phenylprop-1-enyl]amino]-2-phenyl-4a,8a-dihydro-4H-pyrano[3,2-d][1,3]dioxin-6-one ?
user
C22H19NO5
assistant