Using Clc1ccc2c(c1)OCCN2, CCOC(=O)C(=O)C(=O)OCC to produce CCOC(=O)C1(O)C(=O)N2CCOc3cc(Cl)cc1c32, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.