Using OCCO, CCOC(=O)N1CC=C(CC(=O)c2cccc(OC)c2)CC1 to produce CCOC(=O)N1CC=C(CC2(c3cccc(OC)c3)OCCO2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.