You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
cyclobutyl-[4-[2-(pyridin-4-ylmethoxy)ethyl]-1-oxa-8-azaspiro[4.5]decan-8-yl]methanone;2,2,2-trifluoroacetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H31F3N2O5
assistant