Using CC(C)(C)OC(=O)N1CCC(N)(C(N)=O)CC1, S=C(Cl)Cl to produce CC(C)(C)OC(=O)N1CCC2(CC1)NC(=S)NC2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.