You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3R)-3-[4-amino-7-oxo-3-(4-phenoxyphenyl)-4,5,6,7a-tetrahydro-3aH-pyrrolo[2,3-d]pyridazin-1-yl]pyrrolidine-1-carbonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H24N6O2
assistant