Using CCOC(=O)CC(c1ccccc1)c1cc(OC)cc2[nH]ccc12 to produce COc1cc(C(CC=O)c2ccccc2)c2cc[nH]c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.