You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 7-chloro-N-[1-[[1-cyano-2-(5-oxo-4-azaspiro[2.5]octan-6-yl)ethyl]amino]-3-cyclopropyl-1-oxopropan-2-yl]-5-fluoro-1H-indole-2-carboxamide is given. What is its corresponding molecular formula?
user
C25H27ClFN5O3
assistant