You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[[2-(N-benzhydryl-4-methoxyanilino)-6-methoxypurin-9-yl]methoxy]-3-[(4-methoxyphenyl)-diphenylmethoxy]propan-1-ol by IUPAC nomenclature, provide its molecular formula.
user
C50H47N5O6
assistant