You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 1-[(5S)-3-[6-acetyl-7-amino-3-(5-hydroxy-6-phenylpyridin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl]-8-azabicyclo[3.2.1]octan-8-yl]-2-hydroxyethanone is given. What is its corresponding molecular formula?
user
C28H28N6O4
assistant