Using O=C1c2ccc(Cl)cc2CCc2c(O)cccc21, ClCCN1CCOCC1 to produce O=C1c2ccc(Cl)cc2CCc2c(OCCN3CCOCC3)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.