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 tert-butyl 4-(4-methyl-1,3-dioxetan-2-yl)-4-(phenylmethoxycarbonylamino)piperidine-1-carboxylate .
user
C21H30N2O6
assistant