You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2-(5-fluoropyridin-3-yl)-8-morpholin-4-yl-N-[(3R)-2,3,4,9-tetrahydro-1H-carbazol-3-yl]-8,8a-dihydro-3H-pyrazolo[1,5-a][1,3,5]triazin-4-imine using the IUPAC nomenclature.
user
C26H27FN8O
assistant