You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2R)-1-[(4aR,8aS)-2,3,4a,5,6,7,8,8a-octahydrobenzo[b][1,4]oxazin-4-yl]-3-morpholin-4-ylpropan-2-ol .
user
C15H28N2O3
assistant