Using COC(=O)C1CC(=O)C1, CC1(C)O[C@@H]2[C@H](O1)[C@@H](CN)O[C@H]2n1cnc2c(N)ncnc21 to produce COC(=O)[C@H]1C[C@H](NC[C@H]2O[C@@H](n3cnc4c(N)ncnc43)[C@@H]3OC(C)(C)O[C@@H]32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.