Using O=[N+]([O-])c1ccc(Nc2ccnc(Cl)n2)cc1, NCCO to produce O=[N+]([O-])c1ccc(Nc2cc(NCCO)ncn2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.