Using COC(=O)/C(=C/c1ccc(N)c(C(C)C)c1)NC(C)=O to produce COC(=O)[C@H](Cc1ccc(N)c(C(C)C)c1)NC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.