You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-[(Z)-(3-benzyl-2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]indol-1-yl]-N-cyclopentylacetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H25N3O3S
assistant