You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[6-[[6-(3-fluoropyrrolidin-1-yl)imidazo[1,2-b]pyridazin-3-yl]amino]pyridin-3-yl]pyrrolidin-3-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H22FN7O
assistant