(2S)-2-(2-chlorophenyl)-N-(3,3-difluorocyclobutyl)-2-(3,5-difluoro-N-[2-[(2S)-5-oxo-1-pyrimidin-2-ylpyrrolidin-2-yl]acetyl]anilino)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.