Using COC(C)=N, NC1C(O)CC(COCc2ccccc2)C(OCc2ccccc2)C1OCc1ccccc1 to produce CC1=NC2C(CC(COCc3ccccc3)C(OCc3ccccc3)C2OCc2ccccc2)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.