Using CCCCCC(c1nccn1CC(=O)OCC)n1cnc2cc(-c3ccccc3C#N)ccc21 to produce CCCCCC(c1nccn1CC(=O)O)n1cnc2cc(-c3ccccc3C#N)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.