You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-6-[9H-fluoren-9-yl(methoxycarbonyl)amino]-2-[(2-methylpropan-2-yl)oxycarbonylamino]hexanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H32N2O6
assistant