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 N-[1-[[[2-(cyclopropanecarbonylamino)ethylamino]-(ethylamino)methylidene]amino]-2-methylpropan-2-yl]carbamate .
user
C18H35N5O3
assistant