You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1S,2S,6R,7R)-10-benzhydrylidene-4-benzyl-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione by IUPAC nomenclature, provide its molecular formula.
user
C29H23NO2
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