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 ethyl 2-[(5Z)-5-[(2-methyl-4-pyrrolidin-1-ylphenyl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]acetate .
user
C19H22N2O4S
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