Using CC(C)c1ncc(C2(O)CCC(=O)CC2)s1, CC(C)(C)OC(=O)N[C@@H]1CCNC1 to produce CC(C)c1ncc(C2(O)CCC(N3CC[C@@H](NC(=O)OC(C)(C)C)C3)CC2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.