You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [3-[[2-methoxyethyl(methyl)amino]methyl]-1-oxa-9-azaspiro[4.5]decan-9-yl]-pyridin-2-ylmethanone;2,2,2-trifluoroacetic acid .
user
C21H30F3N3O5
assistant