Using O=C(CCl)Nc1ccc(OC2CCN(C3CCC3)CC2)cc1, C1COCCN1 to produce O=C(CN1CCOCC1)Nc1ccc(OC2CCN(C3CCC3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.