Using O=C(O)c1coc(-c2ccc(OCCCCl)cc2)n1, C1COCCN1 to produce O=C(c1coc(-c2ccc(OCCCCl)cc2)n1)N1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.