You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-ethyl-1-methyl-9-[(6-methylpyridin-2-yl)methyl]-1,4,9-triazaspiro[5.5]undecan-5-one;2,2,2-trifluoroacetic acid .
user
C22H30F6N4O5
assistant