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 8-[6-(4-methylpiperazin-1-yl)-5-nitropyrimidin-4-yl]-1,4-dioxa-8-azaspiro[4.5]decane .
user
C16H24N6O4
assistant