You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (20R,23R)-23-(benzylsulfonylmethyl)-N-[(4-cyanophenyl)methyl]-4,12,22-trioxo-3,13-diazatetracyclo[23.2.2.215,18.16,10]dotriaconta-1(28),6,8,10(32),15(31),16,18(30),25(29),26-nonaene-20-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C47H46N4O6S
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