Using CC(=O)OC(C)=O, COC(=O)c1cc(O)n2nc(CO)nc2n1 to produce COC(=O)c1cc(O)n2nc(COC(C)=O)nc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.