You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-[4-hydroxy-1-[3-[1-[(2-methylpropan-2-yl)oxycarbonyl]piperidin-4-yl]oxycyclobutyl]piperidin-4-yl]phthalic acid .
user
C27H38N2O8
assistant