Using CC(C)(C)OC(=O)N(CC(=O)O)c1ccccc1, CCCCCCCCCCN1CCNCC1 to produce CCCCCCCCCCN1CCN(C(=O)CN(C(=O)OC(C)(C)C)c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.