You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 1-O-tert-butyl 4-O-(2,3,4,5,6-pentafluorophenyl) (2S,3R)-3-(2-methylpropyl)-2-prop-2-enylbutanedioate ?
user
C21H25F5O4
assistant