You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (4R)-2-amino-4-[4-methoxy-3-[(2,3,4,5,6-pentafluorophenoxy)methyl]phenyl]-7,7-dimethyl-5-oxo-6,8-dihydro-4H-chromene-3-carbonitrile ?
user
C26H21F5N2O4
assistant