You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name N-(2,5-dimethylphenyl)-2-[(5R,6R)-6-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl]acetamide ?
user
C19H25N3O3
assistant