You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 1-[4a-(pyridin-2-yloxymethyl)-3,4,5,7,8,8a-hexahydro-2H-pyrano[3,2-c]pyridin-6-yl]-2-methoxyethanone;2,2,2-trifluoroacetic acid ?
user
C19H25F3N2O6
assistant