Using CCOC(=O)[C@H](C)NC(=O)c1cc(Cl)c(C(=O)n2ccc3c(NC(=O)C4CC4)nccc32)c(Cl)c1 to produce C[C@H](NC(=O)c1cc(Cl)c(C(=O)n2ccc3c(NC(=O)C4CC4)nccc32)c(Cl)c1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.