Under IUPAC nomenclature, a molecule named (2R)-N-[(4-cyclohexylpyridin-2-yl)methyl]-N-(1-oxo-2H-phthalazin-6-yl)-1-(2,3,5,6-tetrafluoro-4-methylphenyl)sulfonylazetidine-2-carboxamide is given. What is its corresponding molecular formula?