You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 6-benzyl-2-ethyl-4-[[4-phenyl-3-(2-trityltetrazol-5-yl)phenyl]methoxy]-7,8-dihydro-5H-1,6-naphthyridine into its molecular formula.
user
C50H44N6O
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