You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named benzhydryl (6R)-7-(benzylideneamino)-8-oxo-3-[(triphenyl-lambda5-phosphanylidene)methyl]-5-thia-1-azabicyclo[4.2.0]octane-3-carboxylate by IUPAC nomenclature, provide its molecular formula.
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C46H39N2O3PS
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