You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named tert-butyl (3aS,6aS)-2-[(E)-2-[4-[(2R,5R)-5-[2-[(2S,3aS,6aS)-1,2,3,3a,4,5,6,6a-octahydrocyclopenta[b]pyrrol-2-yl]-3H-benzimidazol-5-yl]-1-(3,5-difluoro-4-piperidin-1-ylphenyl)pyrrolidin-2-yl]-2-aminoanilino]ethenyl]-2-methyl-3,3a,4,5,6,6a-hexahydrocyclopenta[b]pyrrole-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C50H64F2N8O2
assistant