You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named dichloromethane;methyl (2R)-2-[(3R)-5-bromo-1-methyl-3-[(2-methylpropan-2-yl)oxycarbonylamino]-2-oxoindol-3-yl]-2-isocyano-2-phenylacetate by IUPAC nomenclature, provide its molecular formula.
user
C25H26BrCl2N3O5
assistant