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 methyl (2R)-2-[(5E)-5-[[3,5-dichloro-4-[(4-iodophenyl)methoxy]phenyl]methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]propanoate .
user
C21H16Cl2INO5S
assistant