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 4-[5-(methoxymethoxy)-1'-[(2-methylpropan-2-yl)oxycarbonyl]spiro[chromene-2,4'-piperidine]-4-yl]benzoic acid .
user
C27H31NO7
assistant