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 (2-chlorophenyl)-[2-(4,6-dimethylpyrimidin-2-yl)-1,2,5-oxadiazepan-5-yl]methanone .
user
C17H19ClN4O2
assistant