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 1-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-2-[2-(3-methoxyphenyl)-5-methyl-1,3-oxazol-4-yl]ethanone ?
user
C20H24N2O5
assistant