Using CCOC(=O)C[C@@H](C)c1ccc(NC(=O)Cc2ccc(NC(=O)N3CCc4ccccc43)c(OC)c2)cc1 to produce COc1cc(CC(=O)Nc2ccc(C(C)CC(=O)O)cc2)ccc1NC(=O)N1CCc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.