Using C[C@H](OCc1ccccc1)[C@@H](NC(=O)OC(C)(C)C)C(=O)O, Nc1ccc2oc3c(c2c1)CCCCC3 to produce C[C@@H](OCc1ccccc1)[C@@H](NC(=O)OC(C)(C)C)C(=O)Nc1ccc2oc3c(c2c1)CCCCC3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.