You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N,N-dimethyl-2-[5-(piperidin-1-ylmethyl)-1,4,2-dioxazinan-3-yl]ethanamine;ethane is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H33N3O2
assistant