Using C[C@@H](OC(=O)c1ccccc1)[C@@H](C)OC(=O)[C@H](Cc1ccc(OCc2ccccc2)c(OCc2ccccc2)c1)NC(=O)OC(C)(C)C to produce C[C@@H](OC(=O)c1ccccc1)[C@@H](C)OC(=O)[C@H](Cc1ccc(O)c(O)c1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.