Using CC(C)c1ncc(C(=O)O)s1, CC(C)(C)OC(=O)N1CCC2(CC1)CNCCO2 to produce CC(C)c1ncc(C(=O)N2CCOC3(CCN(C(=O)OC(C)(C)C)CC3)C2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.