You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-propan-2-yl-5-[2-[9-(trifluoromethyl)-6-azaspiro[3.5]nonan-6-yl]pyridin-4-yl]-1,2,4-oxadiazole into its molecular formula.
user
C19H23F3N4O
assistant