You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 4-(cyclopropanecarbonyl)-N-[(1S,3S)-3-methoxy-2,2,3-trimethylcyclobutyl]-1,4-diazepane-1-carboxamide using the IUPAC nomenclature.
user
C18H31N3O3
assistant