You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-N-[[4-(1,1-difluoroethoxy)phenyl]methyl]-5-N-[(3-oxo-4H-chromen-6-yl)methyl]pyrazolo[1,5-a]pyrimidine-5,7-dicarboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H23F2N5O5
assistant