Using CCOC(C)=O, CCn1c2ccc(C(C)=O)cc2c2cc(C(=O)c3ccccc3C)ccc21 to produce CCn1c2ccc(C(=O)CC(C)=O)cc2c2cc(C(=O)c3ccccc3C)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.