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-(5,5-dioxo-5lambda6-thiaspiro[3.5]nonan-8-yl)-6-imidazol-1-ylpyrimidin-4-amine .
user
C15H19N5O2S
assistant