Using CN1CCN(c2cccc3c(=O)cc(C(=O)O)oc23)CC1, Nc1ccc(N2CCOCC2)cc1O to produce CN1CCN(c2cccc3c(=O)cc(C(=O)Nc4ccc(N5CCOCC5)cc4)oc23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.