You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[[(1S,2R,4R)-7,7-dimethyl-1-(2-oxo-1,3-oxazole-3-carbonyl)-2-bicyclo[2.2.1]heptanyl]oxy]ethyl 2,2,2-trichloroacetate by IUPAC nomenclature, provide its molecular formula.
user
C17H20Cl3NO6
assistant