You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[2-[11-[5-(2-aminopyridin-4-yl)-3-hydroxy-7-phenylhept-6-enyl]-2,3'-dihydroxy-3-methoxy-7-oxospiro[9,10-didehydro-6,11-dihydro-5H-benzo[9]annulene-8,4'-cyclohexane]-1'-yl]ethyl]-2,3,4,4a,5,6,8,8a-octahydro-1H-quinolin-7-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C48H59N3O6
assistant