You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[[[2-[(2-methylpropan-2-yl)oxycarbonylamino]cyclopentanecarbonyl]amino]methyl]cyclopentane-1-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H30N2O5
assistant