Using CCCCCC, CCCN1CCC23c4cccc(OC)c4OC2C2CCC3(C1=O)C(CO)C2 to produce CCCN1CCC23c4cccc(OC)c4OC2C2CCC3(C1=O)C(COC)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.