Using CC(C)C[C@@]1(C(=O)O)C[C@H](c2cnccn2)[C@H](c2cnc(Cl)s2)N1C(=O)c1ccc(C(C)(C)C)cc1 to produce CC(C)C[C@@]1(C(=O)O)C[C@H](c2cnccn2)[C@H](c2cncs2)N1C(=O)c1ccc(C(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.