Using CC(C)(C)OC(=O)N1CCC(C(=O)C2(c3ncccn3)SCCCS2)CC1, O=C1CCC(=O)N1Cl to produce CC(C)(C)OC(=O)N1CCC(C(=O)C(=O)c2ncccn2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.