Using CCOC(=N)CC(=O)OCC, Nc1cc(-c2nc3ccccc3o2)ccc1NC1CCOCC1 to produce CCOC(=O)Cc1nc2cc(-c3nc4ccccc4o3)ccc2n1C1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.