Using CC(=O)OC(C)(C)C, CCCC[C@@H](CC(=O)OC)OCc1ccccc1 to produce CCCC[C@@H](CC(=O)CC(=O)OC(C)(C)C)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.