Using N=C(N)N, CCOC(=O)c1c[nH]c(C(=O)/C=C/N(C)C)c1 to produce CCOC(=O)c1c[nH]c(-c2ccnc(N)n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.