You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-(6-chloro-2H-chromene-3-carbonyl)-2,8-diazaspiro[4.5]decan-8-yl]-2-(2-methylphenoxy)ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H29ClN2O4
assistant