You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (4R)-4-[(1R,3aS,3bS,5aR,9aR,9bS,11aR)-9a,11a-dimethyl-7-oxo-1,2,3,3a,3b,4,5,5a,6,9b,10,11-dodecahydroindeno[5,4-f]quinolin-1-yl]-N-pyridin-3-ylpentanamide is given. What is its corresponding molecular formula?
user
C28H39N3O2
assistant