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 (4S,5R)-2-(cyclopropylmethyl)-4-(methoxymethyl)-N,N-dimethyl-2,7-diazaspiro[4.4]nonane-7-carboxamide;2,2,2-trifluoroacetic acid .
user
C18H30F3N3O4
assistant