You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[6-[4-(5-chloro-6-methyl-1H-indazol-4-yl)-3-[2-(2-methoxyethyl)-4-(oxan-4-yl)piperazin-1-yl]-5-methylpyrazol-1-yl]-2-azaspiro[3.3]heptan-2-yl]prop-2-en-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H44ClN7O3
assistant