Using CC(C)(C)OC(=O)N1CCC(C2CCN(c3cc(Cl)ncn3)CC2)CC1, C[S-] to produce CSc1cc(N2CCC(C3CCN(C(=O)OC(C)(C)C)CC3)CC2)ncn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.