You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2R)-1-[4-(9H-fluoren-9-ylmethoxycarbonylamino)-3-methoxybutanoyl]-2-methylpyrrolidine-2-carboxylic acid into molecular formula.
user
C26H30N2O6
assistant