You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,4S)-N-cyclopropyl-1-(2,6-dimethoxypyridine-3-carbonyl)-4-pyridin-3-yloxypyrrolidine-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H24N4O5
assistant