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 N-[1-[5-[(dimethylamino)methyl]-1,2,4-oxadiazol-3-yl]cycloheptyl]-2-morpholin-3-ylacetamide .
user
C18H31N5O3
assistant