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 2,4-dimethyl-5-[1-[(2-methyl-2-adamantyl)oxy]-1-oxopropan-2-yl]oxy-5-oxopent-2-enoic acid .
user
C21H30O6
assistant