You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(2S,3S,4R,5S,6R)-5-acetamido-3,4-diacetyloxy-6-(4-formyl-2-methoxyphenoxy)oxan-2-yl]methyl acetate by IUPAC nomenclature, provide its molecular formula.
user
C22H27NO11
assistant