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-[(4S)-4-methyl-1,1,3-trioxo-1,2-thiazolidin-2-yl]-N-(4-pyrrolidin-1-ylphenyl)benzamide .
user
C21H23N3O4S
assistant