Using O=c1[nH]c(=O)n(COC(COCc2ccccc2)COCc2ccccc2)cc1Cc1ccccc1 to produce O=c1[nH]c(=O)n(COC(CO)CO)cc1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.