You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3R)-1-benzyl-3-[4-(4-morpholin-4-ylsulfonylphenyl)piperazin-1-yl]pyrrolidine-2,5-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H30N4O5S
assistant