Using COC(=O)c1ccccc1, CC(C)(C)OC(=O)N1CCC(c2cncs2)CC1 to produce CC(C)(C)OC(=O)N1CCC(c2cnc(C(=O)c3ccccc3)s2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.