Using Nc1cc(-c2nc3ccccc3o2)ccc1NC1CCOCC1, CCOC(=N)c1cccc(OC)c1 to produce COc1cccc(-c2nc3cc(-c4nc5ccccc5o4)ccc3n2C2CCOCC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.