Using CCOC(=O)c1cc2c(N[C@@H]3CN(C(=O)OC(C)(C)C)C[C@@H]3C)c(C(N)=O)cnn2c1 to produce C[C@H]1CN(C(=O)OC(C)(C)C)C[C@H]1Nc1c(C(N)=O)cnn2cc(C(=O)O)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.