You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1,1-bis(4-fluorophenyl)propan-2-yl (2R)-2-[(3-acetyloxy-4-methoxypyridine-2-carbonyl)amino]propanoate by IUPAC nomenclature, provide its molecular formula.
user
C27H26F2N2O6
assistant