You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(3R)-3-(4-amino-2-methylpyrido[2,3-d]pyrimidin-7-yl)piperidin-1-yl]-[3-(4-fluorophenyl)-1,2-oxazol-5-yl]methanone .
user
C23H21FN6O2
assistant