Using CC(C)(C)OC(=O)NC1(C)CCCC1N, CC(C)[C@@H]1CC[C@@H](C)C[C@H]1OC(=O)Cl to produce CC(C)[C@@H]1CC[C@@H](C)C[C@H]1OC(=O)NC1CCCC1(C)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.