You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 3-[(5E)-5-[[2-[4-(4-fluorophenyl)piperazin-1-yl]-4-oxopyrido[1,2-a]pyrimidin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]propanoic acid into its molecular formula.
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C25H22FN5O4S2
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