You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[6-[6-[6-[(E)-4-amino-3-methylbut-3-enyl]pyridin-2-yl]indazol-1-yl]pyridin-2-yl]methanol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H23N5O
assistant