You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-[(2S)-1-(4-chlorophenyl)-1-oxopropan-2-yl]-N-[(1R,2R,6S,7R)-3,5-dioxo-4-azatricyclo[5.2.1.02,6]dec-8-en-4-yl]-4-nitrobenzamide is given. What is its corresponding molecular formula?
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C25H20ClN3O6
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