You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(3S,4R)-3-[(3,5-dimethyl-1,2-oxazol-4-yl)methoxy]oxan-4-yl]-3-pyridin-4-ylpropanamide into molecular formula.
user
C19H25N3O4
assistant