Using CC(C)(C)OC(=O)N1CCC2(CC1)CNCCO2, CC(C)c1csc(C(=O)O)n1 to produce CC(C)c1csc(C(=O)N2CCOC3(CCN(C(=O)OC(C)(C)C)CC3)C2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.