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 [(4R)-4-(methoxymethyl)-2-methylsulfonyl-2,8-diazaspiro[4.5]decan-8-yl]-(3-methyl-1,2-oxazol-5-yl)methanone .
user
C16H25N3O5S
assistant