You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named methyl 3-methoxy-1-[(3R)-2-methyloxolan-3-yl]-4-oxo-5-[(2,4,6-trifluorophenyl)methylcarbamoyl]pyridine-2-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C21H21F3N2O6
assistant