Using CC(=O)O, O=C(N1CCNCC1)C1(c2ccc(OCCCN3CCCOCC3)cc2)CCOCC1 to produce CN1CCN(C(=O)C2(c3ccc(OCCCN4CCCOCC4)cc3)CCOCC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.