You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,4R)-N-[(5aR,6aS,7S,10aS)-9-carbamoyl-7-(dimethylamino)-4-fluoro-1,10a-dihydroxy-8,10,11,12-tetraoxo-5,5a,6,6a,7,11a-hexahydrotetracen-2-yl]-4-fluoro-1-methylpyrrolidine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H30F2N4O8
assistant