You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named tert-butyl N-[4-[(E)-N-(1-acetylcyclobutyl)oxy-C-[2-[(2R,3S)-2-ethyl-4-oxoazetidin-3-yl]acetyl]carbonimidoyl]-1,3-thiazol-2-yl]carbamate by IUPAC nomenclature, provide its molecular formula.
user
C22H30N4O6S
assistant