You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(3R,9R)-3-hydroxy-4-methyl-8-oxo-4-[(3R,4S,5S,6R)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy-5-oxatricyclo[4.2.1.03,9]nonan-9-yl]methyl benzoate .
user
C23H28O11
assistant