You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (2R,3R,4S,5S,6R)-2-[[(4R,7S,7aR,12bS)-9-hydroxy-3-methyl-2,4,4a,7,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7-yl]oxy]-6-(2H-tetrazol-5-yl)oxane-3,4,5-triol is given. What is its corresponding molecular formula?
user
C23H27N5O7
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