Using Cc1ccc(S(=O)(=O)[C@@H]2C[C@@H](C(=O)O)N(C(=O)OC(C)(C)C)C2)c(C)c1, CC[C@H](N)[C@H](O)C(=O)NC1CC1 to produce CC[C@H](NC(=O)[C@@H]1C[C@@H](S(=O)(=O)c2ccc(C)cc2C)CN1C(=O)OC(C)(C)C)[C@H](O)C(=O)NC1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.