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 (1S,2R,4S,7S,10R)-4-ethyl-12,15-difluoro-10-[4-(trifluoromethyl)phenyl]sulfonyl-17-oxa-5lambda6-thia-6-azatetracyclo[8.8.0.02,7.011,16]octadeca-11,13,15-triene 5,5-dioxide;methane .
user
C25H28F5NO5S2
assistant