You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-chloro-3-[2-[2-[[1-[ethyl(methyl)amino]-3-iminopropan-2-ylidene]amino]pyrimidin-5-yl]ethyl]-2-fluoro-5-methoxy-N-methylbenzamide .
user
C21H26ClFN6O2
assistant