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 [(3S)-3-[(3-fluorophenyl)methyl]-2-oxa-8-azaspiro[4.5]decan-8-yl]-[4-(3-fluorophenyl)oxan-4-yl]methanone .
user
C27H31F2NO3
assistant