Using CCOC(=O)CN, CC(C)(C)OC(=O)N(CC=O)CCc1ccc2c(c1)COC2=O to produce CCOC(=O)CNCCN(CCc1ccc2c(c1)COC2=O)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.