Using COc1ccc(C(O)CNC(=O)CNC(=O)c2cc(OC)c(OC)c(OC)c2)cc1OC to produce COc1cc2c(cc1OC)C(CNC(=O)c1cc(OC)c(OC)c(OC)c1)NCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.