Using CON(C)C(=O)[C@H](CC1CCCCC1)NC(=O)OC(C)(C)C, CCN to produce CCNC(=O)[C@H](CC1CCCCC1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.