Using CCOC(=O)c1cc(COc2ccccc2)nn1C[C@H]1COC(C)(C)N1C(=O)OC(C)(C)C to produce O=C1N[C@H](CO)Cn2nc(COc3ccccc3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.