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 4-methyl-9-[[2-methyl-5-(trifluoromethyl)phenyl]methyl]-1-oxa-9-azaspiro[5.5]undecan-4-ol .
user
C19H26F3NO2
assistant