Using CC(OC(C)(C)CO)C1CCCC(C)(C)C1, COCC(=O)OC to produce COCC(=O)OCC(C)(C)OC(C)C1CCCC(C)(C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.