Compound 25

Dimethyl (S)-4,5,5',6,6'-pentakis(benzyloxy)-4'-((4,5,5-tris(benzyloxy)-2-formyl-6-oxocyclohexa-1,3-dien-1-yl)oxy)-[1,1'-biphenyl]-2,2'-dicarboxylate

From: A unified strategy for the synthesis of highly oxygenated diaryl ethers featured in ellagitannins