Using CC(C)(C)OC(=O)N(C[C@H](O)COc1ccccc1)[C@H](CO)Cc1ccc(NC(=O)c2cc[nH]c2)cc1 to produce O=C(Nc1ccc(C[C@@H](CO)NC[C@H](O)COc2ccccc2)cc1)c1cc[nH]c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.