Using O=C(O)c1cc(Cl)cc2c1OCC2, NCC1CCCN1CC1=CCCCC1 to produce O=C(NCC1CCCN1CC1=CCCCC1)c1cc(Cl)cc2c1OCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.