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 (6R,10S)-4,5,11,12-tetramethylidene-1,8-bis(trifluoromethyl)-15-oxahexacyclo[6.6.1.13,6.110,13.02,7.09,14]heptadecane .
user
C22H20F6O
assistant