You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (3R,3aR,6aS)-3-(3-bromo-5-ethoxy-4-hydroxyphenyl)-5-(3-chloro-2-methylphenyl)-2-phenyl-3a,6a-dihydro-3H-pyrrolo[3,4-d][1,2]oxazole-4,6-dione .
user
C26H22BrClN2O5
assistant