Using CNC(=O)NC, CCOC(=O)CC(=O)c1ccc(OC)c(OC)c1 to produce COc1ccc(-c2cc(=O)n(C)c(=O)n2C)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.