Using COC(=O)c1ccccc1OCCN1CCC(c2cn(CCOC3CCCCO3)c3ccccc23)CC1 to produce O=C(O)c1ccccc1OCCN1CCC(c2cn(CCO)c3ccccc23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.