You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(2S,3R)-3-hydroxy-1-[(2R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyicosan-2-yl]icosanamide into molecular formula.
user
C46H91NO8
assistant