Using N=C(N)N, CCOC(=O)c1ccc(OCCCC(C#N)C(=O)OCC)cc1 to produce CCOC(=O)c1ccc(OCCCc2c(N)nc(N)[nH]c2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.