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 (Z)-2-[3-[6-(7,8-dihydro-5H-pyrido[3,4-b]pyrazin-6-yl)pyrimidin-4-yl]-6-fluoro-1H-indazol-5-yl]-3-methyliminoprop-1-en-1-amine .
user
C22H20FN9
assistant