You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (4-nitrophenyl)methyl (8R)-8-acetamido-5-(1,3-dioxoisoindol-2-yl)-3-methyl-9-oxo-6-thia-1,5-diazabicyclo[5.2.0]non-2-ene-2-carboxylate .
user
C25H21N5O8S
assistant