Using CCn1cc(Cc2ccc(C(=O)OC)cc2OC)c2cc(NC(=O)CC3CCCC3)ccc21 to produce CCN1CC(Cc2ccc(C(=O)OC)cc2OC)c2cc(NC(=O)CC3CCCC3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.