Using COC(C)=O, COC(=O)c1cc(C(=O)OC)cc(-n2cccc2)c1 to produce COC(=O)CC(=O)c1cc(C(=O)OC)cc(-n2cccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.