You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 7-[(4-butoxy-2,3-difluorophenyl)methyl]-10-hydroxy-6-methyl-8-oxo-N-[4-(trifluoromethyl)-2-[6-(trifluoromethyl)pyrimidin-4-yl]phenyl]-6,7-diazaspiro[4.5]dec-9-ene-9-carboxamide;hydrochloride by IUPAC nomenclature, provide its molecular formula.
user
C33H32ClF8N5O4
assistant