You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[(3aR,6R,6aS)-6-nitrooxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-3-yl]oxycarbonyloxy]propan-2-yl 2-ethoxy-3-[[4-[2-(2H-tetrazol-5-yl)phenyl]phenyl]methyl]benzimidazole-4-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C34H33N7O11
assistant