Using O=CC1CCOC1, CC(C)(C)C1[C@@H](N)CCCN1C(=O)[O-] to produce CC(C)(C)OC(=O)N1CCC[C@H](NCC2CCOC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.