You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[8-amino-7-fluoro-6-(8-methyl-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazin-7-yl)isoquinolin-3-yl]-[(3S,4S)-4-cyanooxolan-3-yl]carbamic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H21FN6O4
assistant