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 (2,5-dioxopyrrolidin-1-yl) 3-[bis[2-(pyridin-2-yldisulfanyl)ethylamino]phosphorylamino]propanoate .
user
C21H27N6O5PS4
assistant