Using CCOC=C(C(=O)OCC)C(=O)OCC, Nc1n[nH]cc1-c1ccc(Cc2ccccc2)cc1 to produce CCOC(=O)c1cnc2c(-c3ccc(Cc4ccccc4)cc3)cnn2c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.