You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[(2E)-2-(2-methoxy-2-oxoethylidene)-4-oxo-1,3-thiazolidin-3-yl]propyl 2-(thiophen-2-ylsulfonylamino)acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H18N2O7S3
assistant