Using NCCc1ccc(O)c(O)c1, CCOC(CN(C(C)=O)c1ccc([N+](=O)[O-])cc1)OCC to produce O=[N+]([O-])c1ccc(NCC2NCCc3cc(O)c(O)cc32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.