You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named tert-butyl 3-[ethyl-[4-(5-phenyl-1,3,4-oxadiazol-2-yl)butanoyl]amino]azetidine-1-carboxylate is given. What is its corresponding molecular formula?
user
C22H30N4O4
assistant