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 (1S,4R,6R,7Z,14S,18R)-N-[3-(benzylamino)-3-oxopropyl]-18-methoxy-14-methyl-2,15-dioxo-16-azatricyclo[14.3.0.04,6]nonadec-7-ene-4-carboxamide is given. What is its corresponding molecular formula?
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C31H43N3O5
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