Using CCn1c(C)c(-c2ccc(C[C@H](NC(=O)OC(C)(C)C)C(=O)OC)cc2)c(=O)n(CC)c1=O to produce CCn1c(C)c(-c2ccc(C[C@H](N)C(=O)OC)cc2)c(=O)n(CC)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.